Sushi

is a traditional Japanese dish made with , typically seasoned with sugar and salt, and combined with a variety of , such as seafood, vegetables, or meat; raw seafood is the most common, although some may be cooked. While sushi has numerous styles and presentations, the current defining component is the vinegared rice, also known as , or .

The modern form of sushi is believed to have been created by Hanaya Yohei, who invented nigiri-zushi, the most commonly recognized type today, in which seafood is placed on hand-pressed, vinegared rice. This innovation occurred around 1824 in the Edo period (1603–1867). It was the fast food of the chōnin class in the Edo period.

Sushi is traditionally made with medium-grain white rice, although it can also be prepared with brown rice or short-grain rice. It is commonly prepared with seafood, such as squid, eel, yellowtail, salmon, tuna, or imitation crab meat (surimi). Certain types of sushi are vegetarian. It is often served with , wasabi, and soy sauce. Daikon radish or are popular garnishes for the dish.

Sushi is sometimes confused with sashimi, a dish that consists of thinly sliced raw fish or occasionally meat, without sushi rice.

History

Narezushi

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President Barack Obama and Prime Minister Shinzo Abe at Sukiyabashi Jiro

A dish known as , "matured fish", stored in fermented rice for possibly months at a time, has been cited as one of the early influences for the Japanese practice of applying rice on raw fish. The fish was fermented with rice vinegar, salt, and rice, after which the rice was discarded. is also called , meaning "fully fermented", as opposed to , meaning "partially fermented", a type of sushi that appeared in the Muromachi period.

Fermented fish using rice, such as , originated in Southeast Asia, where it was made to preserve freshwater fish, possibly in the Mekong River basin, which is now Laos, Cambodia, Thailand, and Vietnam, and in the Irrawaddy River basin, which is now Myanmar. The first mention of a -like food is in a Chinese dictionary thought to be from the fourth century, in this instance referring to salted fish that had been placed in cooked or steamed rice, which caused it to undergo a fermentation process via lactic acid. Fermentation methods following similar logic in other Asian rice cultures include , , and of the Philippines; pekasam of Indonesia and Malaysia; padaek () of Laos; () of Thailand; sikhae () of Korea; and mắm of Vietnam.Template:Overcite

The lacto-fermentation of the rice prevents the fish from spoiling. When wet-field rice cultivation was introduced during the Yayoi period, lakes and rivers would flood during the rainy season and fish would get caught in the rice paddy fields. Pickling was a way to preserve the excess fish and guarantee food for the following months, and became an important source of protein for Japanese consumers. The term sushi literally means "sour-tasting", as the overall dish has a sour and umami or savory taste. The term comes from an antiquated terminal-form conjugation, no longer used in other contexts, of the adjectival verb , resulting in the term . still exists as a regional specialty, notably as from Shiga Prefecture.

In the of 718, the characters for "" and "" are written as a tribute to the Japanese imperial court, and although there are various theories as to what exactly this food was, it is possible that it referred to .

Namanare

Until the early 19th century, sushi slowly changed with Japanese cuisine. The Japanese started eating three meals a day, rice was boiled instead of steamed, and of large importance was the development of rice vinegar.

During the Muromachi period (1336–1573), the Japanese invented a style of sushi called or (), which means "partially fermented". The fermentation period of was shorter than that of the earlier , and the rice used for fermentation was also eaten with the fish. In other words, with the invention of , sushi changed from a preserved fish food to a food where fish and rice are eaten together. After the appearance of , sake and sake lees were used to shorten fermentation, and vinegar was used in the Edo period.

Hayazushi

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Bowl of Sushi by Hiroshige (1797–1858). Makizushi with rice rolled in tamagoyaki (front) and nigirizushi with shrimp (back).

During the Edo period (1603–1867), a third type of sushi, , was developed. differed from earlier sushi in that instead of lactic fermentation of rice, vinegar, a fermented food, was mixed with rice to give it a sour taste so that it could be eaten at the same time as the fish. Previously, sushi had evolved with a focus on shortening the fermentation period, but with the invention of , which is simply mixed with vinegar, the fermentation process was eliminated and sushi became a fast food. Many types of sushi known in the world today, such as , , , and , were invented during this period, and they are a type of . Each region utilizes local flavors to produce a variety of sushi that has been passed down for many generations. A 1689 cookbook describes , and a 1728 cookbook describes pouring vinegar over (square sushi made by filling a wooden frame with rice).

Today's style of , consisting of an oblong mound of rice with a slice of fish draped over it, became popular in Edo (contemporary Tokyo) in the 1820s or 1830s. One common story of the origin of is of the chef Hanaya Yohei (1799–1858), who invented or perfected the technique in 1824 at his shop in Ryōgoku. The of this period was somewhat different from modern . The sushi rice of this period was about three times the size of today's . The amount of vinegar used was half that of today's sushi, and the type of vinegar developed during this period, called , was made by fermenting sake lees. They also used slightly more salt than in modern times instead of sugar. Seafood served over rice was prepared in a variety of ways. This red vinegar was developed by Nakano Matazaemon (), who is the founder of Mizkan, a company that still develops and sells vinegar and other seasonings today.

The dish was originally termed as it used freshly caught fish from the (Edo or Tokyo Bay); the term is still used today as a by-word for quality sushi, regardless of its ingredients' origins.

Conveyor belt sushi

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Conveyor belt sushi restaurant in Kamakura

In 1958, Yoshiaki Shiraishi opened the first named "Genroku Zushi" in Higashi-Osaka. Conveyor belt sushi is a casual and affordable type of sushi restaurant .

Conveyor belts are typically installed along tables or counters in the restaurant and are used to carry plates of sushi past diners, who can choose to take whatever they want . Generally, the bill is based on the number of sushi plates, with different colors representing a particular price.

When Genroku Sushi opened a restaurant at the Japan World Exposition, Osaka, 1970, it won an award at the expo, and conveyor belt sushi restaurants became known throughout Japan. In 1973, an automatic tea dispenser was developed, which is now used in conveyor belt sushi restaurants today. When the patent for conveyor belt sushi restaurants expired, a chain of conveyor belt sushi restaurants was established, spreading conveyor belt sushi throughout Japan and further popularizing and lowering the price of sushi. By 2021, the conveyor belt sushi market had grown to 700 billion yen and spread outside Japan.

Sushi in English

The earliest written mention of sushi in English described in the Oxford English Dictionary is in an 1893 book, A Japanese Interior, where it mentions sushi as "a roll of cold rice with fish, sea-weed, or some other flavoring". There is an earlier mention of sushi in James Hepburn's Japanese–English dictionary from 1873, and an 1879 article on Japanese cookery in the journal Notes and Queries. Despite common misconception among English speakers, sushi does not mean "raw seafood."

Types

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Sushi platter to go

The common ingredient in all types of sushi is vinegared sushi rice. Fillings, toppings, condiments, and preparation vary widely.

Due to consonant mutation, sushi is pronounced with instead of when a prefix is attached, as in .

Chirashizushi

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with raw ingredients

serves the rice in a bowl and tops it with a variety of raw fish and vegetable garnishes. It is popular because it is filling, fast, and easy to make. It is eaten annually on in March and Children's Day in May.

• (Edo-style scattered sushi) is served with uncooked ingredients in an artful arrangement.
• (Kansai-style sushi) consists of cooked or uncooked ingredients mixed in the body of rice.
• (Kyushu-style sushi) uses rice wine over vinegar in preparing the rice and is topped with shrimp, sea bream, octopus, shiitake mushrooms, bamboo shoots, and shredded omelette.

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Three pieces of

is a pouch of fried tofu typically filled with sushi rice alone. According to Shinto lore, is named after the god Inari. Foxes, messengers of Inari, are believed to have a fondness for fried tofu and in some regions an Inari-zushi roll has pointed corners that resemble fox ears, thus reinforcing the association. The shape of Inarizushi varies by region. Inarizushi usually has a rectangular shape in Kantō region and a triangle shape in the Kansai region.

Regional variations include pouches made from a thin omelette (, or , ), instead of fried tofu. It should not be confused with , a sushi roll filled with seasoned fried tofu.

Cone sushi is a variant of originating in Hawaii that may include green beans, carrots, gobo, or poke along with rice, wrapped in a triangular piece. It is often sold in (Japanese delis) and as a component of bento boxes.

Makizushi

, or is a cylindrical piece formed with the help of a mat known as a . is generally wrapped in nori (seaweed) but is occasionally wrapped in a thin omelette, soy paper, cucumber, or (perilla) leaves. is often cut into six or eight pieces, constituting a single roll order. Short-grain white rice is usually used, although short-grain brown rice, like olive oil on nori, is now becoming more widespread among the health-conscious. Rarely, sweet rice is mixed in rice.

Nowadays, the rice in can be many kinds of black rice, boiled rice, and cereals. Besides the common ingredients listed above, some varieties may include cheese, spicy cooked squid, , , lunch meat, sausage, bacon or spicy tuna. The nori may be brushed with sesame oil or sprinkled with sesame seeds. In a variation, sliced pieces of may be lightly fried with egg coating.

Below are some common types of , but many other kinds exist.

• is a large, cylindrical style of sushi, usually with nori on the outside. A typical is in diameter. They are often made with two, three, or more fillings that are chosen for their complementary tastes and colors. are often vegetarian, and may use strips of cucumber, gourd, (bamboo shoots), or lotus root. Strips of omelette, tiny fish roe, chopped tuna, and whitefish flakes are typical non-vegetarian fillings. Traditionally, the vinegared rice is lightly seasoned with salt and sugar. Popular proteins are fish cakes, imitation crab meat, egg, tuna, or shrimp. Vegetables usually include cucumber, lettuce, and .
• is is wrapped in a thin omelet.
• or is a fried version of the dish.
• During the evening of the festival of , it is traditional in the Kansai region to eat a particular kind of in its uncut cylindrical form, called . By 2000 the custom had spread to all of Japan. is a roll composed of seven ingredients considered to be lucky. The typical ingredients include , egg, eel, and shiitake mushroom. often include other ingredients too. People usually eat the while facing the direction considered to be auspicious that year.
• is a type of small cylindrical sushi with nori on the outside. A typical has a diameter of about . They generally contain only one filling, often tuna, cucumber, , , paste, and squid with (Japanese herb).
  • Kappamaki (河童巻) is a kind of filled with cucumber. It is named after the Japanese legendary water imp, fond of cucumbers, called the . Traditionally, is consumed to clear the palate between eating raw fish and other kinds of food so that the flavors of the fish are distinct from the tastes of other foods.
  • is a kind of filled with raw tuna. Although it is believed that the word , meaning "red hot iron", alludes to the color of the tuna flesh or salmon flesh, it actually originated as a quick snack to eat in gambling dens called , much like the origins of the sandwich.
  • is a kind of filled with negitoro, also known as scallion () and chopped tuna (). Fatty tuna is often used in this style.
  • is a kind of filled with canned tuna tossed with mayonnaise.
• is a large cone-shaped style of sushi with nori on the outside and the ingredients spilling out the wide end. A typical is about long and is eaten with the fingers because it is too awkward to pick it up with chopsticks. For optimal taste and texture, must be eaten quickly after being made because the nori cone soon absorbs moisture from the filling and loses its crispness, making it somewhat difficult to bite through. For this reason, the nori in pre-made or take-out temaki is sealed in plastic film, which is removed immediately before eating.

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Modern

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( made from )

is a traditional form of fermented sushi. Skinned and gutted fish are stuffed with salt, placed in a wooden barrel, doused with salt again, then weighed down with a heavy (pickling stone). As days pass, water seeps out and is removed. After six months, this sushi can be eaten, remaining edible for another six months or more.

The most famous variety of are the ones offered as a specialty dish of Shiga Prefecture, particularly the made from fish of the crucian carp genus, the authentic version of which calls for the use of , a particular locally differentiated variety of wild goldfish endemic to Lake Biwa.

Nigirizushi

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Eleven pieces of nigirizushi at a sushi buffet in Helsinki, Finland

consists of an oblong mound of sushi rice that a chef typically presses between the palms of the hands to form an oval-shaped ball and a topping (the ) draped over the ball. It is usually served with a bit of wasabi; toppings are typically fish such as salmon, tuna, or other seafood. Certain toppings are typically bound to the rice with a thin strip of nori, most commonly octopus (), freshwater eel (), sea eel (), squid (), imitation crab (kanikama), and sweet egg ().

(ja:軍艦巻) is a special type of : an oval, hand-formed clump of sushi rice that has a strip of nori wrapped around its perimeter to form a vessel that is filled with some soft, loose or fine-chopped ingredient that requires the confinement of nori such as roe, , oysters, (sea urchin roe), sweetcorn with mayonnaise, scallops, and quail eggs. was invented at the Ginza Kyubey restaurant in 1941; its invention significantly expanded the repertoire of soft toppings used in sushi.

is a style of sushi made by pressing rice and fish into a ball-shaped form by hand using a plastic wrap.

Oshizushi

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Japanese cutlassfish at a restaurant in Minamata, Kumamoto

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(pressed sushi)

, also known as , is a pressed sushi from the Kansai region, a favorite and specialty of Osaka. A block-shaped piece is formed using a wooden mold, called an . The chef lines the bottom of the with the toppings, covers them with sushi rice, and then presses the mold's lid to create a compact, rectilinear block. The block is removed from the mold and then cut into bite-sized pieces. Particularly famous is or . In , all the ingredients are either cooked or cured, and raw fish is never used. The name battera means "small boat" in Portuguese (bateira), as the sushi molds resembled small boats.

Oshizushi wrapped in persimmon leaves, a specialty of Nara, is known as .

Seared oshizushi, or , is a popular variety invented in Vancouver, British Columbia in 2008. This involves using a butane torch to sear the sushi, which may contain ingredients such as mayonnaise, various sauces, jalapeños, and avocado in addition to typical sushi ingredients such as salmon and mackerel. The variety has since spread to other cities, such as Toronto.

Western-style sushi

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. A Norwegian businessman introduced the use of salmon as a sushi ingredient to Japan in the 1980s.

The increasing popularity of sushi worldwide has resulted in variations typically found in the Western world but rarely in Japan.

One widespread form of sushi created to suit the Western palate is the California roll, a which presently almost always uses imitation crab (the original recipe calls for real cooked crab), along with avocado and cucumber. A wide variety of popular rolls ( and ) have evolved since.

The identity of the creator of the California roll is disputed. Several chefs from Los Angeles have been cited as the dish's originators, as well as one chef from Vancouver, British Columbia.

The earliest mention in print of a "California roll" was in the Los Angeles Times and an Ocala, Florida newspaper on November 25, 1979. Less than a month later an Associated Press story credited a Los Angeles chef named Ken Seusa at the Kin Jo sushi restaurant near Hollywood as its inventor. The AP article cited Mrs. Fuji Wade, manager of the restaurant, as its source for the claim.

Others attribute the dish to Ichiro Mashita, another Los Angeles sushi chef from the former Little Tokyo restaurant "Tokyo Kaikan". According to this account, Mashita began substituting the toro (fatty tuna) with avocado in the off-season, and after further experimentation, developed the prototype, back in the 1960s.

Japanese-born chef Hidekazu Tojo, a resident of Vancouver, British Columbia since 1971 is also credited, claiming he created the California roll at his restaurant in the late 1970s. Tojo insists he is the innovator of the "inside-out" sushi, and it got the name "California roll" because its contents of crab and avocado were abbreviated to C.A., which is the abbreviation for the state of California. Because of this coincidence, Tojo was set on the name California Roll. According to Tojo, he single-handedly created the California roll at his Vancouver, British Columbia restaurant, including all the modern ingredients of cucumber, cooked crab, and avocado. In 2016 the Japanese Ministry of Agriculture, Forestry and Fisheries named Tojo a goodwill ambassador for Japanese cuisine.

The common theme in origin stories is that surrounding the roll in rice made it more appealing to western consumers who had never eaten traditional sushi. This innovation led to the eventual creation of countless rolls across North America and the world.

For example, the "Norway roll" is another variant of filled with (omelette), imitation crab and cucumber, rolled with leaf and , topped with slices of Norwegian salmon, garnished with lemon and mayonnaise.

Although most Western sushi creations are rare in Japan, a notable exception to this is the use of salmon. The Japanese have eaten salmon since prehistory; however, caught salmon in nature often contains parasites and must be cooked or cured for its lean meat to be edible. On the other side of the world, in the 1960s and 1970s, Norwegian entrepreneurs started experimenting with aquaculture farming. The big breakthrough was when they figured out how to raise salmon in net pens in the sea. Being farm-raised, the Atlantic salmon reportedly showed advantages over the Pacific salmon, such as no parasites, easy animal capture, and higher fat content. With government subsidies and improved techniques, they were so successful in raising fatty and parasite-free salmon they ended up with a surplus. Norway has a small population and limited market; therefore, they looked to other countries to export their salmon. The first Norwegian salmon was imported into Japan in 1980, accepted conventionally, for grilling, not for sushi. Salmon had already been consumed in North America as an ingredient in sushi as early as the 1970s. Salmon sushi did not become widely accepted in Japan until a successful marketing partnership in the late 1980s between Bjørn E. Olsen, a Norwegian businessman tasked with helping the Norwegian salmon industry glut, and the Japanese food supplier Nichirei.

Uramaki

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rolls

is a medium-sized cylindrical style of sushi with two or more fillings and was developed as a result of the creation of the California roll, as a method originally meant to hide the nori. differs from other because the rice is on the outside and the nori inside. The filling is surrounded by nori, then a layer of rice, and optionally an outer coating of some other ingredients such as roe or toasted sesame seeds. It can be made with different fillings, such as tuna, crab meat, avocado, mayonnaise, cucumber, or carrots.

Examples of variations include the rainbow roll (an inside-out topped with thinly sliced and avocado) and the caterpillar roll (an inside-out topped with thinly sliced avocado). Also commonly found is the "rock and roll" (an inside-out roll with barbecued freshwater eel and avocado with toasted sesame seeds on the outside).

In Japan, is an uncommon type of ; because sushi is traditionally eaten by hand in Japan, the outer layer of rice can be quite difficult to handle with fingers.

In Brazil and other sushi pieces commonly include cream cheese in their recipe. Although unheard of in Japanese sushi, this is the most common sushi ingredient used in Brazil. also often contains a large amount of cream cheese and is extremely popular in restaurants.

American-style

File:Golden Maki Rainbow Roll sushi.jpg

Rainbow roll, with multiple fillings including shrimp tempura, salmon, avocado, mango, with rice mixed with

Multiple-filling rolls inspired by are a more popular type of sushi within the United States and come in variations that take their names from their places of origin. Other rolls may include a variety of ingredients, including chopped scallops, spicy tuna, beef or chicken teriyaki roll, okra, and assorted vegetables such as cucumber and avocado, and the tempura roll, where shrimp tempura is inside the roll or the entire roll is battered and fried tempura-style. In the Southern United States, many sushi restaurants prepare rolls using crawfish. Sometimes, rolls are made with brown rice or black rice, known as forbidden rice, which appear in Japanese cuisine as well.

Per Food and Drug Administration regulations, raw fish served in the United States must be frozen before serving to kill parasites.

Since rolls are often made to order, it is not unusual for the customer to specify the exact ingredients desired (e.g., salmon roll, cucumber roll, avocado roll, tuna roll, shrimp or tuna tempura roll, etc.). Though the menu names of dishes often vary by restaurant, some examples include the following:

Image	Sushi roll name	Definition
	Alaskan roll	A variant of the California roll with smoked salmon on the inside or layered on the outside.
	Boston roll	An California roll with poached shrimp instead of imitation crab.
File:BC Roll.jpg	British Columbia roll	A roll containing grilled or barbecued salmon skin, cucumber, and sweet sauce, sometimes with roe. Also sometimes referred to as salmon skin rolls outside of British Columbia, Canada.
File:Maki a un restaurant japonés de Xàbia.jpg	California roll	A roll consisting of avocado, (imitation crab/crab stick) (also can contain real crab in "premium" varieties), cucumber, and , often made as (with rice on the outside, nori on the inside).
File:Golden Maki Vegetarian Dragon sushi roll.jpg	Dragon roll	A roll containing fillings such as shrimp tempura, cucumber, and unagi, and wrapped distinctively with avocado on the outside. Also commonly called a "caterpillar roll", its avocado exterior is said to resemble the scales of a dragon.
File:Dynamite rolls.jpg	Dynamite roll	A roll including yellowtail () or prawn tempura, and fillings such as bean sprouts, carrots, avocado, cucumber, chili, spicy mayonnaise, and roe.
	Hawaiian roll	A roll containing tuna (canned), , , , and the distinctive red and green (shrimp powder).
	Mango roll	A roll including fillings such as avocado, crab meat, tempura shrimp, and mango slices, and topped off with a creamy mango paste.
	Michigan roll	A roll including fillings such as spicy tuna, smelt roe, spicy sauce, avocado, and sushi rice. It is a variation on a spicy tuna roll.
	New Mexico roll	A roll originating in New Mexico; includes New Mexico green chile (sometimes tempura-fried), teriyaki sauce, and rice. Sometimes simply referred to as a "green chile (tempura) roll" within the state.
File:Philly roll.jpg	Philadelphia roll	A roll consisting of raw or smoked salmon and cream cheese (the name refers to Philadelphia cream cheese), with cucumber, avocado, and/or scallion. Functionally synonymous with Japanese bagel (JB) roll and Seattle roll.
File:Golden Maki Rainbow Roll sushi.jpg	Rainbow roll	A California roll with multiple types of fish (commonly yellowtail, tuna, salmon, snapper, white fish, eel, etc.) and avocado wrapped around it.
File:Crunchy Spicy Tuna, big eye tuna, shiso panko, togarashi ($21) (32807112472).jpg	Spicy tuna roll	A roll including raw tuna mixed with sriracha mayonnaise.
File:Spider Roll 2010.jpg	Spider roll	A roll including fried soft-shell crab and other fillings such as cucumber, avocado, daikon sprouts or lettuce, roe, and sometimes spicy mayonnaise.
File:Sushirrito. Burrito sized sushi rolls. Supersize me ethnic style - 5465986273.jpg	Sushi burrito	A large, customizable roll offered in several "sushi burrito" restaurants in the United States.

Australia

Australian sushi is a thick hand roll made from half a standard sheet of nori. It is similar to thick rolls; however, it is often served uncut as an on-the-go snack. Typical fillings in Australian sushi include teriyaki chicken, salmon and avocado, tuna, and prawn. Australian California rolls are very different from American California rolls, with the nori wrapping the rice and fillings always on the outside, and no nor cream cheese.

Contrary to sushi in Japan and other countries being a high-end food, it is widely available in affordable takeaway joints in Australia. Sushi in Japanese restaurants has existed in Australia since the 1950s, but the first Australian-style sushi only appeared in 1995, in a stall called Sushi-Jin in the Target Centre food court at 246 Bourke Street, Melbourne. The owner, Toshihiro Shindo, started selling takeaway sushi rolls which he adapted to Australian tastes. The store closed in 2008. As of 2024, Japanese cuisine is the most popular cuisine in Australia with sushi as the third overall most popular food item, after hot dogs and pizza.

Australian sushi has grown in popularity in recent years, with its influence extending beyond Australia into the United Kingdom and United States, which has sparked an online controversy after the opening of Sushi Counter in West Village, New York City. People accused the owner of cultural appropriation and left negative reviews, prompting Google to remove all spam ratings from the restaurant location.

Canada

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Some examples of Canadian sushi, including , which was invented in Vancouver, and sushi donut.

Many of the styles seen in the United States are also seen in Canada and their own. Doshi (a portmanteau of donut and sushi) is a donut-shaped rice ball on a deep-fried crab or imitation crab cake topped with sushi ingredients. Maki poutine is similar to in style except it is topped with cheese curds and gravy and contains duck confit, more cheese curds, and sweet potato tempura. Sushi cake is made of crab meat, avocado, shiitake mushroom, salmon, spicy tuna, and tobiko and served on sushi rice, then torched with spicy mayonnaise, barbecue sauce, and balsamic reduction, and dotted with caper and garlic chips. Sushi pizza is deep-fried rice or crab/imitation crab cake topped with mayonnaise and various sushi ingredients.

Mexico and the Western United States

Sinaloan sushi originated in Sinaloa, Mexico and has been available in the Western United States since 2013.

Similar dishes in Asia

South Korea

, similar to , is an internationally popular convenience food of Korean origin. It consists of (the Korean version of nori) rolled around rice seasoned with sesame oil, instead of vinegar, and a variety of ingredients such as vegetables, like , and meat, like .

Ingredients

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Video of making sushi without fish

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Sushi chef preparing , Kyoto, Japan

All sushi has a base of specially prepared rice, complemented with other ingredients. Traditional Japanese sushi consists of rice flavored with vinegar sauce and various raw or cooked ingredients.

Sushi-meshi

is a preparation of white, short-grained, Japanese rice mixed with a dressing consisting of rice vinegar, sugar, salt, and occasionally kombu and sake. It must be cooled to room temperature before being used for a sushi filling, or it will get too sticky while seasoned. Traditionally, it is mixed with a hangiri (a round, flat-bottom wooden tub or barrel) and a (a wooden paddle).

Sushi rice is prepared with short-grain Japanese rice, which has a consistency that differs from long-grain strains such as those from India, Sri Lanka, Bangladesh, Thailand, and Vietnam. The essential quality is its stickiness or glutinousness, although the type of rice used for sushi differs from glutinous rice. Freshly harvested rice () typically contains too much water and requires extra time to drain the rice cooker after washing. In some fusion cuisine restaurants, short-grain brown rice and wild rice are also used.

There are regional variations in sushi rice, and individual chefs have their methods. Most of the variations are in the rice vinegar dressing: the Kantō region version of the dressing commonly uses more salt; in Kansai region, the dressing has more sugar.

Nori

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Sheets of nori

The dark green seaweed wrappers used in are called . Nori is a type of red algae, typically in the family Bangiaceae, traditionally cultivated in the harbors of Japan. Many different foliose red algae species are cultivated to be used as sushi wrappers, however Pyropia tenera is the most commonly farmed. This species ranks among the top three most commonly cultivated seaweed species in China, Korea, and Japan. Originally, algae was scraped from dock pilings, rolled out into thin, edible sheets, and dried in the sun, similar to making rice paper. Today, the commercial product is farmed, processed, toasted, packaged, and sold in sheets.

The size of a nori sheet influences the size of . A full-size sheet produces , and a half produces and . To produce and some other , an appropriately sized piece of nori is cut from a whole sheet.

Nori by itself is an edible snack and is available with salt or flavored with teriyaki sauce. The flavored variety, however, tends to be of lesser quality and is not suitable for sushi.

When making , a paper-thin omelet may replace a sheet of nori as the wrapping. The omelet is traditionally made on a rectangular omelet pan, known as a , and used to form the pouch for the rice and fillings.

Gu

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Sushi made of meats other than fish (whether raw or cooked) is a variation often seen in Japan.

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 – a roasted and sweet-sauced whole conger eel

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 – fried-shrimp roll

The ingredients used inside sushi are called and are, typically, varieties of fish. For culinary, sanitary, and aesthetic reasons, the minimum quality and freshness of fish to be eaten raw must be superior to that of fish that is to be cooked. Sushi chefs are trained to recognize important attributes, including smell, color, firmness, and freedom from parasites that may go undetected in a commercial inspection. Commonly used fish are tuna (), yellowtail (), snapper (), mackerel (), and salmon (). The most valued sushi ingredient is , the fatty cut of the fish. This comes in a variety of (often from the bluefin species of tuna) and , meaning "middle toro", implying that it is halfway into the fattiness between and the regular cut. style refers to nigiri sushi, where the fish is partially grilled (topside) and partially raw. Most nigiri sushi will have completely raw toppings, called .

Other seafoods such as squid (), eel ( and ), pike conger (), octopus (), shrimp ( and ), clam (, and ), fish roe (, , and ), sea urchin (), crab (), and various kinds of shellfish (abalone, prawn, scallop) are the most popular seafoods in sushi. Oysters are less common, as the taste is thought to not go well with the rice. , or imitation crab stick, is commonly substituted for real crab, most notably in California rolls.

Pickled daikon radish () in , pickled vegetables (), fermented soybeans () in , avocado, cucumber in , asparagus, yam, pickled (), gourd (), burdock (), and sweet corn (sometimes mixed with mayonnaise) are plant products used in sushi.

Tofu, eggs (in the form of slightly sweet, layered omelette called ), and raw quail eggs (as a topping) are also common.

Condiments

Sushi is commonly eaten with condiments. Sushi may be dipped in (soy sauce), and is usually flavored with wasabi, a piquant paste made from the grated stem of the Wasabia japonica plant. Japanese-style mayonnaise is a common condiment in Japan on salmon, pork, and other sushi cuts.

The traditional grating tool for wasabi is a sharkskin grater or . An imitation wasabi (), made from horseradish, mustard powder, and green dye, is common. It is found at lower-end restaurants, in bento box sushi, and at most restaurants outside Japan. If manufactured in Japan, it may be labelled "Japanese Horseradish". The spicy compound in both true and imitation wasabi is allyl isothiocyanate, which has well-known anti-microbial properties. However, true wasabi may contain some other antimicrobials as well.

(sweet, pickled ginger) is eaten in between sushi courses to both cleanse the palate and aid in digestion. In Japan, green tea () is invariably served together with sushi. Better sushi restaurants often use a distinctive premium tea known as . In sushi vocabulary, green tea is known as .

Sushi may be garnished with , grated , thinly sliced vegetables, carrots, radishes, and cucumbers that have been shaped to look like flowers, real flowers, or seaweed salad.

When closely arranged on a tray, different pieces are often separated by green strips called or . These dividers prevent the flavors of neighboring pieces of sushi from mixing and help to achieve an attractive presentation. Originally, these were cut leaves from the and plants, respectively. Using actual leaves had the added benefit of releasing antimicrobial phytoncides when cut, thereby extending the limited shelf life of the sushi.

Sushi bento boxes are a staple of Japanese supermarkets and convenience stores. As these stores began rising in prominence in the 1960s, the labor-intensive cut leaves were increasingly replaced with green plastic to lower costs. This coincided with the increased prevalence of refrigeration, which extended sushi's shelf life without the need for cut leaves. Today plastic strips are commonly used in sushi bento boxes and, to a lesser degree, in sushi presentations found in sushi bars and restaurants. In store-sold or to-go packages of sushi, the plastic leaf strips are often used to prevent the rolls from coming into early or unwanted contact with the ginger and wasabi included with the dish.

Nutrition

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Sushi in shops are usually sold in plastic trays.

The main ingredients of traditional Japanese sushi—raw fish and rice—are naturally low in fat and high in protein, carbohydrates (from the rice), vitamins, and minerals, as are (pickled ginger) and (seaweed). Other vegetables wrapped in sushi may also provide additional nutrients.

Health risks

Potential chemical and biological hazards in sushi include environmental contaminants, pathogens, and toxins.

Large marine apex predators such as tuna (especially bluefin) can harbor high levels of methylmercury, one of many toxins of marine pollution. Frequent or significantly large consumption of methylmercury can lead to developmental defects when consumed by certain higher-risk groups, including women who are pregnant or may become pregnant, nursing mothers, and young children. A 2021 study in Catalonia, Spain reported that the estimated exposure to methylmercury in sushi consumption by adolescents exceeded the tolerable daily intake.

A 2011 article reported approximately 18 million people infected with fish-borne flukes worldwide. Such an infection can be dangerous for expecting mothers due to the health risks that medical interventions or treatment measures may pose on the developing fetus. Parasitic infections can have a wide range of health impacts, including bowel obstruction, anemia, liver disease, and more. These illnesses' impact can pose health concerns for the expecting mother and baby.

Sashimi or other types of sushi containing raw fish present a risk of infection by three main types of parasites:

• Clonorchis sinensis, a fluke which can cause clonorchiasis
• Anisakis, a roundworm which can cause anisakiasis
• Diphyllobothrium, a tapeworm which can cause diphyllobothriasis

For these reasons, EU regulations forbid using raw fish that had not previously been frozen. It must be frozen at temperatures below Template:Cvt in all product parts for no less than 24 hours. Fish for sushi may be flash frozen on fishing boats and by suppliers to temperatures as low as Template:Cvt. Super-freezing destroys parasites, and also prevents oxidation of the blood in tuna flesh that causes discoloration at temperatures above Template:Cvt.

Calls for stricter analysis and regulation of seafood include improved product description. A 2021 DNA study in Italy found 30%–40% of fish species in sushi incorrectly described.

Some forms of sushi, notably those containing the fugu pufferfish and some kinds of shellfish, can cause severe poisoning if not prepared properly. Fugu consumption, in particular, can be fatal. Fugu pufferfish have a lethal dose of tetrodotoxin in their internal organs and, by law in many countries, must be prepared by a licensed fugu-chef who has passed the prefectural examination in Japan. Licensing involves a written test, a fish-identification test, and a practical test that involves preparing the fugu and separating out the poisonous organs; only about 35 percent of applicants pass.

Sustainable sushi

Sustainable sushi is made from fished or farmed sources that can be maintained or whose future production does not significantly jeopardize the ecosystems from which it is acquired.

Presentation

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Sushi served on a wooden platter at a sushi restaurant in Kanagawa Prefecture, Japan

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Sushi in restaurant in Vienna, Austria

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Stone plates are used at high-end Japanese restaurants in Ōarai, Ibaraki, Japan.

Traditionally, sushi is served on minimalist Japanese-style plates—often made of wood or lacquer—and arranged to emphasize clean lines, open space, and a sense of tranquility, reflecting the aesthetic principles of Japanese cuisine.

Many sushi restaurants offer fixed-price sets selected by the chef from the catch of the day. These are often graded as , , , and , with being the most expensive and the least expensive. Sushi restaurants often have private booth dining, where guests are asked to remove their shoes and leave them outside the room; however, most sushi bars offer diners a casual experience with an open dining room concept.

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Meat sushi

Sushi may also be served (sushi train) style, in which color-coded plates of sushi are placed on a conveyor belt from which diners pick as they please. After finishing, the bill is tallied by counting how many plates of each color have been taken. Newer restaurants use barcodes or RFID tags embedded in the dishes to manage the time elapsed since each item was prepared.

There is a practice called which entails serving sushi on the naked body of a woman.

Glossary

Some specialized or slang terms are used in the sushi culture. Most of these terms are used only in sushi bars.

• : Template:Lit, refers to green tea. in usual Japanese.
• : Sweet, pickled and sliced ginger, or sushi ginger (gari). in standard Japanese.
• : "Jewel". Sweet, cube-shaped omelette. in standard Japanese.
• : "Violet" or "purple" (color). Soy sauce. in standard Japanese.
• : Toppings on nigiri or fillings in . A reversal of the standard Japanese .
• : "Compliment". Bill or check. may be used in not only sushi bars but also . or in standard Japanese.
• : Chopsticks.7 means the nearest thing to the customer seated. or in standard Japanese.
• : Contracted form of , also known as Japanese horseradish.
• : Vinegar rice or rice. It may originally be from the Sanskrit () meaning rice,Template:OR or . or in standard Japanese.
• : Sweet thick sauce mainly made of soy sauce. in standard Japanese.

Etiquette

Unlike sashimi, which is almost always eaten with chopsticks, is traditionally eaten with the fingers, even in formal settings. Although it is commonly served on a small platter with a side dish for dipping, sushi can also be served in a bento, a box with small compartments that hold the various dishes of the meal.

Soy sauce is the usual condiment, and sushi is normally served with a small sauce dish or a compartment in the bento. Traditional etiquette suggests that the sushi is turned over so that only the topping is dipped to flavor it; the rice—which has already been seasoned with rice wine vinegar, sugar, salt, mirin, and kombu—would otherwise absorb too much soy sauce and would fall apart.

Traditionally, the sushi chef will add an appropriate amount of wasabi to the sushi while preparing it, and the diner should not add more. However, today, wasabi is more a matter of personal taste, and even restaurants in Japan may serve wasabi on the side for customers to use at their discretion, even when there is wasabi already in the dish.

Utensils used in making sushi

Preparation utensils

Utensil	Definition
	Kitchen cloth
	Rice barrel
	Kitchen knives
	Bamboo rolling mat
or	Cooking chopsticks
	Wooden rice paddle
	Rectangular omelette pan
	A mold used to make

Gallery

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See also

• , Korean variant of
• Customs and etiquette in Japanese dining
• List of sushi and sashimi ingredients
• List of sushi restaurants
• , sushi presented on nude female body
• , Japanese knife to slice raw fish and seafood
• Spam musubi, Hawaiian variant of
• Sushi machine

External links

• WikiHow page on making sushi rice