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Negitoro

Negitoro (ネギトロ) is a Japanese dish consisting of finely minced raw tuna mixed with chopped green onions (negi), typically prepared from sashimi-grade tuna scraps scraped from around the bones and belly to minimize waste.^[1]^[2] The name derives from "negitoru," meaning "to scrape off" in Japanese, rather than directly combining "negi" (green onions) and "toro" (fatty tuna), though it often incorporates fatty cuts like otoro or chutoro for richness.^[3]^[2] Originally developed in the mid-20th century in Asakusa, Tokyo, negitoro emerged as a resourceful way for sushi vendors to utilize leftover tuna after filleting, transforming what was once considered undesirable into a flavorful ingredient.^[1]^[2] It gained prominence in 1964 when Kintaro Sushi in Tokyo's Minowa neighborhood added negitoro maki (sushi rolls) to their menu, coinciding with the Tokyo Olympics and boosting its popularity as an accessible sushi option.^[3] Commonly served as negitoro donburi—minced tuna and green onions over steamed rice, drizzled with a soy-based tare sauce made from soy sauce, mirin, sake, sugar, and dashi—negitoro highlights the umami of fresh tuna while the green onions provide a fresh, pungent contrast.^[2]^[1] Variations include hosomaki (thin nori-wrapped rolls), temaki (hand rolls), and gunkan maki (battleship-style nigiri topped with the mixture), often enhanced with sesame seeds, shredded nori, or wasabi.^[3] High-end versions use premium bluefin tuna, while more affordable ones incorporate yellowfin or albacore blended with oil or mayonnaise for texture.^[3]

Overview

Definition

Negitoro is a Japanese dish prepared as a finely minced mixture of raw tuna and chopped green onions (negi), typically using sashimi-grade tuna scraps scraped from around the bones, skin, and belly.^[2]^[1] This combination highlights the rich, melt-in-the-mouth quality of the tuna alongside the mild sharpness of the onions, making it a valued ingredient in Japanese cuisine.^[4] Typically presented as a loose topping scattered over sushi rice or molded into shapes for enhanced visual appeal, negitoro is also used in hand rolls (temaki) and mixed into rice balls (onigiri) for portable enjoyment.^[2]^[5] It can be served simply on its own as a sashimi-style nibble, often with soy sauce and wasabi.^[4] Negitoro differs from related tuna preparations, such as the rice bowl dish negitoro don, which layers the mixture over a full bed of rice, and other sashimi varieties that feature whole cuts rather than minced forms.^[2]^[1]

Key Ingredients

The primary ingredient in negitoro is raw tuna, typically sashimi-grade scraps known as nakaochi scraped from around the bones, skin, and belly, which may include fatty portions such as toro for richness. Specifically the belly cuts such as otoro (the fattiest portion from the ventral area) or chutoro (a medium-fatty blend from the sides of the belly) are prized when used. These cuts offer a rich, buttery flavor and melt-in-the-mouth texture, derived from high marbling of fat that provides a decadent umami experience when minced. Otoro, in particular, offers a sweeter taste due to its elevated fat content, while chutoro balances meatiness with subtle fattiness, making both ideal for raw preparations like negitoro. Sourcing typically involves bluefin tuna (hon maguro, Thunnus thynnus or Thunnus orientalis), often from Pacific or Atlantic fisheries, though sustainable alternatives like yellowfin may be used in commercial versions.^[6]^[7] Complementing the tuna is negi, or Japanese green onions, which are fresh and finely chopped to add a crisp texture and mild, aromatic onion flavor that cuts through the richness of the tuna. Unlike Western scallions, negi varieties such as naganegi (long onions with tender white sheaths) or aonegi (green spring onions) feature longer, thicker stalks with a sweeter, less pungent profile, enhancing the dish's freshness without overpowering it. Regional types like Kujo-negi from Kyoto or Shimonita-negi from Gunma are favored for their delicate taste and availability, often harvested for optimal tenderness.^[8]^[2] Authentic negitoro employs minimal optional binders or seasonings to preserve the purity of its core flavors, such as a touch of soy sauce or wasabi served on the side rather than mixed in. Some preparations may include a small amount of sesame seeds for subtle nuttiness or a simple tare sauce (made from soy sauce, mirin, and dashi) drizzled separately, but these are not integral to the base mixture. Quality is paramount: the tuna must be sushi-grade, super-frozen or flash-chilled to -20°C (-4°F) for at least seven days to eliminate parasites while maintaining peak freshness and minimal fishy odor. Negi should be seasonally sourced for vibrancy, with peak availability in winter to early spring for certain varieties, such as from November to February, ensuring the dish's crunch and aroma remain uncompromised.^[2]^[7]^[9]

History

Origins

Negitoro emerged in the mid-20th century as a resourceful innovation in Japanese sushi culture, utilizing scraps of fatty tuna to minimize waste in busy Tokyo kitchens. Unlike traditional Edo-period sushi items such as nigiri or maki made from premium cuts, negitoro was a post-war development born from the need to repurpose the sinewy trimmings and meat scraped from tuna bones, known as "negitoru" in Japanese, which literally means "to scrape." This practice allowed small-scale sushi restaurants to transform otherwise discarded portions into an edible delicacy, blending minced toro (fatty tuna belly) with finely chopped green onions (negi) for added flavor and texture.^[3] The dish's documented origins trace back to 1964, when chefs at Kintaro Sushi, a restaurant in Tokyo's Asakusa district (specifically the Minowa neighborhood), began preparing negitoro as an internal staff meal using leftover tuna scraps after slicing for nigiri sushi. Initially served to employees and select regular customers to avoid waste, it quickly gained popularity for its creamy, affordable appeal, mimicking the luxury of high-end toro without the cost. By that same year, Kintaro formally added negitoro maki (rolls) to its public menu, marking the first known commercial introduction of the dish in sushi form and establishing it as a staple in local eateries.^[3]^[10]^[11] Early adopters were primarily modest sushi shops in Tokyo, where chefs experimented with mincing fatty fish mixtures to create versatile toppings for rice bowls (donburi) or hand rolls (temaki), reflecting broader post-war trends in efficient resource use amid Japan's economic recovery. This artisanal approach highlighted negitoro's role in sustainable culinary practices, turning potential losses into a sought-after item that democratized access to tuna's rich flavors. Its etymological roots in "negitoru" directly tie to these humble beginnings with ingredient scraps.^[12]^[13]

Commercial Development

The commercialization of negitoro accelerated in the late 1980s and 1990s, transitioning it from a restaurant-exclusive item to a mass-produced consumer product. In August 1987, Akagi Suisan Co., Ltd. pioneered industrial-scale manufacturing and sales of negitoro, enabling widespread distribution through grocery stores and supermarkets across Japan.^[14] This innovation utilized processed tuna scraps, making the dish more affordable and accessible beyond traditional sushi establishments. By the 1990s, the product's popularity surged alongside the growth of conveyor-belt sushi chains.^[15] Mass-market adaptations focused on packaging innovations to enhance convenience and shelf life for home use. Vacuum-sealed pouches and jars became standard, allowing negitoro to remain fresh for extended periods while preserving its texture and flavor profile derived from minced fatty tuna.^[16] These formats facilitated retail sales in refrigerated sections, appealing to busy households seeking quick sushi or donburi preparations. Export opportunities emerged, aligning with the global rise of sushi culture. Negitoro began appearing in international markets, particularly in North America and Europe, often as frozen or chilled processed tuna products adapted for overseas consumers. This growth was supported by Japan's tuna export infrastructure, which included minced varieties like negitoro to meet demand in fusion cuisine trends. Mechanized production processes, including automated mincing and mixing, significantly lowered costs from the outset of industrial scaling, democratizing access to what was once a premium item. By the 2020s, negitoro had become widely available in casual dining settings as an affordable everyday meal option rather than high-end sushi only.^[17]

Etymology

Standard Interpretation

The term "negitoro" is commonly interpreted as a portmanteau of "negi" (葱), meaning green onions or scallions, and "toro" (トロ), referring to the fatty belly cut of tuna used in sushi.^[18] This reflects the dish's preparation of minced fatty tuna mixed with chopped green onions.^[19] The word gained traction in culinary contexts during the 1980s, alongside the rise of toro in sushi and commercialization of the mixture.^[20] By the late 1980s, it appeared as a menu item in major sushi chains.^[21] Japanese dictionaries have recognized "negitoro" as a standard term since the 1990s, defining it as the minced tuna and green onion preparation.^[22]

Alternative Etymologies

An alternative theory posits that "negitoro" derives from the verb "negitoru" (ねぎ取る), meaning "to scrape off," referring to the process of scraping tuna scraps from bones and belly to create the dish and minimize waste.^[2]^[3] This interpretation, supported by some culinary historians and tuna industry sources, gained prominence after the 2000s, though it was not the mainstream view in earlier decades.^[1]

Other Uses

In modern Japanese cuisine, "toro" is sometimes applied to fatty belly cuts of other fish, such as salmon, leading to variants like salmon toro. Minced versions akin to negitoro may also use salmon.^[23]^[4] In pop culture, "negitoro" appears in wordplay unrelated to food. For example, in the video game Splatoon (2015), the stage "Negitoro Tankō" uses the term phonetically for a mining-themed location.^[24]^[25] English-language resources occasionally clarify "negitoro" as the sushi preparation to distinguish it from unrelated terms.^[26]

Preparation

Traditional Methods

In traditional sushi kitchens, negitoro is prepared through a meticulous manual process that emphasizes the freshness and texture of raw ingredients. Fresh toro, the fatty belly cut of tuna, is first scraped from the bones, skin, and scraps of the fish using a spoon or the edge of a knife to gather the soft, marbled flesh. This is then hand-chopped on a wooden cutting board with a sharp sashimi knife, such as a yanagi ba, repeatedly dropping the blade onto small pieces until a fine, uniform mince is achieved, blending the tuna's creamy fat into a paste-like consistency.^[2]^[5]^[27] The minced toro is mixed with finely sliced negi (green onions) to balance the luxurious richness of the fat with the crisp, aromatic sharpness of the onions for an harmonious texture and flavor profile.^[7] Seasoning is often light to preserve the raw quality and can include a toss with sea salt—known as shiojime—to draw out natural flavors, though some recipes incorporate additional elements like dashi granules or mayonnaise.^[5] No cooking or heating is ever applied, maintaining the negitoro's signature melt-in-the-mouth tenderness and vibrant taste essential for authentic sushi toppings like gunkan-maki. Important: Use only sashimi-grade tuna to minimize risks of foodborne illness from raw fish consumption.^[2] In professional settings, this labor-intensive technique is performed swiftly yet precisely on dedicated wooden surfaces to prevent contamination and ensure hygiene.^[2]

Modern Adaptations

In contemporary home cooking, food processors have become a popular tool for preparing negitoro, allowing for rapid mincing of fatty tuna to achieve a smoother, more consistent texture than traditional knife work, often in under a minute for small batches.^[28] This method is particularly favored in quick recipes for negitoro donburi, where the blended tuna is then mixed with finely chopped green onions and a soy-based sauce, reducing preparation time while maintaining the dish's creamy profile.^[28] Vegan adaptations of negitoro have gained traction since the early 2010s, substituting plant-based ingredients to replicate the fatty mouthfeel and fresh flavors of the original. Pressed tofu, blended or cubed for a smooth consistency, serves as a stand-in for toro, while green onions or chives provide the sharp bite of negi; a dash of sesame oil enhances the richness.^[29] Avocado-enhanced versions, combining mashed ripe fruit with negitoro, chives, and seasonings like soy sauce and wasabi, offer a creamy profile popular in various recipes, often rolled into maki or served over rice.^[30] In Western markets, negitoro has inspired fusion dishes that blend Japanese elements with local cuisines, such as incorporating the minced tuna mixture into poke bowls alongside Hawaiian staples like limu seaweed, macadamia nuts, and chili-infused sauces for added spice.^[31] Similarly, adaptations appear in sushi tacos, where negitoro tops crispy wonton shells or corn tortillas with elements like spicy mayo, avocado, and furikake, creating a handheld fusion of raw fish textures and bold seasonings.^[32] Commercial pre-minced negitoro products, typically frozen blocks of sushi-grade tuna scraps, simplify preparation by requiring only thawing and mixing with fresh green onions before serving.^[33] These ready-to-use items, often a blend of lean and fatty cuts, allow home cooks to assemble dishes like hand rolls or bowls with minimal effort, preserving the authentic flavor while adapting to busy lifestyles.^[33]

Cultural Impact

Role in Japanese Cuisine

Negitoro holds a prominent place in Japanese sushi culture, particularly as an affordable and accessible option in conveyor-belt sushi establishments known as kaitenzushi. These casual dining venues, popularized since the 1950s, feature negitoro gunkan-maki—minced fatty tuna wrapped in nori seaweed atop rice—on their rotating belts, making it a staple for quick meals due to its low cost and mild, creamy flavor that appeals to a wide audience, including families and first-time sushi eaters.^[4] Beyond sushi, negitoro appears in casual izakaya settings, where it is served as a small dish or topping for rice bowls, complementing the relaxed pub atmosphere with its fresh, savory profile alongside drinks like sake or beer. This integration reflects its versatility in everyday Japanese dining, often enjoyed during social gatherings or after-work meals.^[34] Negitoro also contributes to sustainable practices in Japanese cuisine by utilizing tuna scraps, embodying the cultural principle of mottainai (avoiding waste) and reducing food waste amid concerns over tuna sustainability.^[35] Nutritionally, negitoro derives its health benefits primarily from the fatty tuna (toro) used in its preparation, which is rich in omega-3 fatty acids such as EPA and DHA; for instance, bluefin tuna provides approximately 1.0 gram of omega-3s per serving, supporting cardiovascular health and positioned as a nutritious yet indulgent choice in contemporary Japanese diets focused on balanced seafood consumption.^[36] Regional variations highlight negitoro's stronger presence in coastal areas like Tokyo, where abundant fresh tuna supplies and vibrant sushi scenes elevate its popularity in urban eateries and markets, compared to inland regions where preferences lean toward non-seafood alternatives due to limited access to high-quality fish. This coastal emphasis aligns with broader sushi traditions, which vary by prefecture but thrive near fishing ports.^[37]

Mass-Market Products and Popularity

Negitoro has become a staple in mass-market offerings through leading producers such as Akagi Suisan, recognized as a pioneer in its commercialization since the late 20th century, and Kyokuyo Co., Ltd., which expanded production capacity to 80 tons per month by the early 2020s to meet supermarket demand.^[38]^[39] These brands, along with Maruha Nichiro, supply frozen and ready-to-use negitoro packs to major Japanese retailers like Aeon and Ito-Yokado.^[40] The product's popularity surged during the 2010s amid the global sushi boom, which re-nationalized and popularized Japanese seafood items like negitoro in domestic markets.^[41] By 2017, the Japanese negitoro market reached approximately 400 billion yen, growing at an annual rate of about 20% driven by demand for convenient seafood toppings for rice bowls and hand rolls.^[42] Major producers like Maruha Nichiro achieved annual output targets of 4,000 tons ahead of schedule around 2024.^[43] Internationally, negitoro has gained traction through exports of frozen tuna products to the U.S. and Europe, where it appeals as an affordable option in sushi settings.^[44] Post-COVID-19, demand for ready-to-eat negitoro versions spiked, with frozen packs becoming popular for home preparation amid lockdowns.^[45] Japan's overall food e-commerce market, which includes seafood products like negitoro, surged by 13.1% in 2020 to 4.3 trillion yen and continued to grow through 2025, though at more moderate single- to low double-digit rates in subsequent years.^[45]^[46]

References

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Negitoro Don (Mashed Tuna Sashimi Bowl) - Sudachi Recipes
Rating 5.0 (1) · 20 minDec 15, 2022 · What is Negitoro Don? Negitoro (ネギトロ丼) is a unique Japanese preparation method using raw tuna. Originally, it was made by vendors who ...What is Negitoro Don? · Ingredients & Substitution Ideas · FAQMissing: definition | Show results with:definition
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Negitoro Don (Minced Raw Tuna on Rice) - RecipeTin Japan
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Aug 3, 2021 · Negitoro is diced tuna with green onion. You'll most often find it served as a sushi roll. The tuna is sourced from scraping near the bones and from scrap ...Missing: dish | Show results with:dish
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Do you know that there are rankings for Negitoro? - Sushi University
Jan 8, 2019 · The original name for negitoro was negitoru. It translates to chip away in Japanese. The name eventually evolved to negitoro. Here we come to ...
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Negitoro Maki (Mashed Tuna Sushi Rolls) - Sudachi Recipes
50 minOct 3, 2024 · While high-end sushi restaurants make negitoro by pounding premium fatty tuna (toro), in this recipe, I will show you secret tricks to ...
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### Otoro
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Negi / Japanese Long Onion | Glossary - Kikkoman Corporation
There are many varieties of Japanese long onions throughout Japan, including Kujo-negi from Kyoto, Shimonita-negi from Gunma, Koshizu-negi from Aichi, Aka-negi ...Missing: negitoro | Show results with:negitoro
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Kintaro-sushi is the first restaurant serving Negitoro!
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### Summary of Negitoro Origins and History
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Negitoro refers to a mix of chopped toro, negi (green scallions), rice and (sometimes) wasabi. The Toro is a byproduct, usually coming from the leftover sinews.<|control11|><|separator|>
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1 pack of 2.8 oz (80 g) use-free type · The onions are made from fresh and weed tuna. · Fresh neitro frozen immediately after making and leaving the original ...
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Photos. Hasegawa Shoten - Nakaochi, JPY 1,000 and Smoked Salmon Trimmings, JPY 500 (Tax · Hasegawa Shoten - Negitoro (No Green Onion), JPY 500!
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意味. ネギトロとは、マグロの中落ちや皮の裏にある脂身を削ぎ落とし、ネギで叩いたもの。軍艦巻きや丼物にする。語源・由来. ネギトロの語源は、「ネギ（葱）」 ...
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negitoro, negitoro. Word Senses. Parts of speech: noun (common) (futsuumeishi); Meaning: tuna minced with Welsh onion leaves (type of sushi topping) ...Missing: weblio | Show results with:weblio
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Jan 13, 2019 · そんな「トロ」が脚光を浴び始めた'60年代。この時期、ある寿司ネタが誕生する。ペースト状のまぐろに刻んだネギを散らした「ねぎとろ」だ。続き ...
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追跡・ネギトロ嘘語源：始まりは、葱のない「ねぎとろ」の方便説
May 23, 2022 · 1987年赤城水産が「ねぎとろ」工業生産開始; 1995年『美味しんぼ』のねぎとろは「かき取る」（55巻「料理人と評論家〈後編〉」）; 1990年代「ねぎる ...
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ねぎ‐とろ【×葱とろ】 ... マグロなどの皮の裏にある脂身や中落ちの身をそぎ落とし、きざんだアサツキなどを散らしたもの。軍艦巻きや丼ものにする。 [補説] 語源未詳。口に ...
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Japanese. English. トロい. toro i. slow. Alternative MeaningsPopularity. slow. 1. dull; stupid; thickheaded 2. slow; sluggish. 1. dull; stupid; thickheaded 2 ...
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Slow, slow to learn or understand. Synonyms: あほ, ばか, とろい, のろい, のろま, なまくら, おたんちん, どんくさい, おたんこなす, 愚図, 愚純, 愚鈍, 痴鈍, 遅い ...
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Avocado & Negitoro Donburi アボカドネギトロ丼
Rating 4.6 (9) · 15 minAdd ½ lb maguro tataki (chopped tuna for negitoro), the avocado cubes, and the green onion slices to the bowl. Add 2 tsp soy sauce and 2 Tbsp mentsuyu ( ...
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None
### Product Description, Preparation, and Instructions
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What are the best food sources of omega-3 fatty acids? ; Tuna (Bluefin), 1.0 grams ; Halibut (Greenland), 0.8 grams ; Sardines (Atlantic, canned in oil), 0.8 grams.
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This second installment in our series on sushi focuses on its diverse regional variations and long associations with ritual and celebration.
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赤城水産はネギトロのリーディングカンパニーとして、ネギトロ（ねぎとろ）、まぐろなどの水産加工品を製造しています。
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極洋、ネギトロ生産量トップ級へ/惣右衛門工場が稼働グループ月産 ...
冷凍ネギトロを月間80トン（製品ベース）製造する子会社・極洋水産（静岡県焼津市、松本哲生社長）の惣右衛門工場を稼働させた。極洋フレッシュ（東京都江戸川区）の生産（主に ...
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第四工場を竣工高付加価値のマグロ加工生産能力倍増へ
... マグロ加工会社へ飛躍する決意を新たにした。ねぎとろの市場規模は約400億円（同社調べ）と年率約20％ずつ成長している。一方で、魚価高騰やバックヤードの人手不足 ...
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(株)マルハニチロオーシャン【マルハニチログループ】の取材情報
実際、2030年までに設定していたネギトロの生産目標年間4000トンを今年度中に達成してしまう見込みです。合併する少し前は年間2000トンの生産量でしたから、いかに飛躍 ...
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Tuna is an important commodity in the international market. Tuna imports by major countries in 1991 are listed in Table 11 for volume and in Table 12 for ...
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食品通販・EC市場は13.1%増の4.3兆円【2020年度】
コロナ禍で市場拡大、食品通販・EC市場は13.1%増の4.3兆円【2020年度】. 2020年度の国内食品通販市場規模は、小売金額ベースで前年度比13.1%増の4兆3057億円 ...
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【2025年版】EC化率をプロが徹底解説｜BtoC、BtoB - ebisumart
Sep 12, 2025 · そのため、食品分野のEC化率は今後も堅調に伸び、物販系全体の成長を下支えする存在になることが期待されます。 2020年に新型コロナウイルス感染症拡大の ...