Historical past, Advisable dishes, Recipe, Eating places


“Tororo” made by grating yamaimo (Japanese mountain yam), is a extremely nutritious meals containing varied vitamins together with dietary fiber. It could assist in digestion and absorption, assist regulate blood sugar ranges, and alleviate constipation and swelling. Moreover, there are totally different kinds of yamaimo, similar to pure yam and nagaimo, every with totally different flavors and calorie content material. Subsequently, it’s essential to grasp these variations to get pleasure from tororo deliciously.

This text explains the vitamins and well being advantages of tororo and the variations between yamaimo and nagaimo.

What’s Tororo?

Grating uncooked yamaimo or nagaimo creates a dish generally known as tororo. Individuals can get pleasure from tororo in varied methods, similar to including it to soups like tororo soup, incorporating it into clear broths as tororo-ni, or pouring it over barley rice as barley tororo.

Moreover, when serving tororo over diced tuna, it goes by the title “yamakake,” which is usually present in dishes like mountain-style soba or udon noodles. The act of pouring tororo in these dishes is named “yamakake.” Tororo boasts a wealthy content material of important nutritional vitamins and minerals, together with vitamin B1, vitamin C, calcium, and potassium.

The yamaimo used to organize tororo is known as “tororo-imo” (薯蕷藷、薯蕷芋). Though yamaimo and nagaimo are distinct species, they each belong to the yamaimo genus, and typically folks collectively consult with them as yamaimo with out differentiation.

About Yamaimo (山芋)

Yamaimo, belonging to the Dioscoreaceae household, is a perennial herbaceous vine recognized for its distinctive stickiness. Individuals can solely eat it in its uncooked kind as a extremely nutritious tuber. It earned the title “yamaimo” on account of its habitat, initially rising wild within the mountains.

Yamaimo has a protracted historical past in Japan, with consumption courting again to the Jomon interval. It’s believed that cultivation of yamaimo started across the Kamakura to Muromachi intervals. The nickname “mountain eel” is attributed to its nourishing and strengthening properties, which have been extremely regarded all through the years.

Kinds of Yamaimo

The Dioscoreaceae household consists of varied tubers which might be known as yamaimo. Nonetheless, it’s essential to notice that there isn’t a selected vegetable named “yamaimo.” The time period “yamaimo” originated to tell apart wild mountain-growing tubers from the cultivated ones generally known as “satoimo.” Individuals use the time period “yamaimo” to distinguish between these two kinds of tubers.

Kinds of Yamaimo (Japanese Mountain Yam)

  • Jinenjo (Pure Yam)
  • Daijo
  • Nagaimo (Lengthy Yam)
  • Ichouimo (Ginkgo Yam) / Yamatoimo (Yamato Yam)

Botanically, jinenjo is assessed underneath the species Dioscorea japonica of the genus Dioscorea within the Dioscoreaceae household. Amongst them, nagaimo belongs to the “Dioscorea opposita complicated,” and ichouimo falls underneath the “Dioscorea polystachya complicated.” Let’s delve into every kind to offer extra detailed info.

Jinenjo (pure yam)


Pure yam, a local selection indigenous to Japan, has a slender form, usually starting from 60cm to 1m in size. Its distinctive attribute is its robust stickiness, which ends from its decrease moisture content material in comparison with different varieties. Individuals typically grate it and use it to make tororo. Moreover, cultivating pure yam takes roughly 3 to 4 years for harvest, and its excavation poses difficulties, making it uncommon to seek out in markets. A lot of the pure yam obtainable in markets as we speak is cultivated.



Daijo is a wide range of yamaimo originating from Southeast Asia, also referred to as “Taiwan yamaimo” or “Okinawa yamaimo.” Individuals eat it as a staple meals in varied areas, together with Africa, tropical Asia, and Latin America. In Japan, farmers domesticate it in small portions in sure areas, similar to Okinawa and components of southern Kyushu.

When grated, it reveals a powerful stickiness and a wealthy taste. Moreover, there are each purple and white varieties. Grating the purple-skinned and purple-fleshed Daijo produces a light-weight purple tororo with a definite style.

Nagaimo (Lengthy Yam)


Among the many yamaimo varieties, the elongated ones are generally known as “nagaimo.” Farmers domesticate this selection nationwide, and it holds the best manufacturing quantity. You will need to differentiate nagaimo from jinenjo (pure yam) as they’ve distinct strategies of cultivation. Whereas nagaimo is often grown alongside different greens and tubers in farmland, jinenjo grows naturally.

When it comes to traits, nagaimo stands out with its excessive moisture content material and low stickiness. As a substitute of being grated into tororo, it’s generally sliced thinly for salads or pickled dishes. Alternatively, it may be minimize into bigger items for simmered dishes, permitting its texture to be totally appreciated and loved.

Ichouimo (Ginkgo Yam)

出典: delishkitchen.television

The elongated yamaimo varieties are generally generally known as “nagaimo.” Farmers domesticate this selection nationwide, and it holds the best manufacturing quantity. Individuals typically mistake nagaimo for jinenjo (pure yam), however there’s a distinction in the best way they’re grown. Farmers usually domesticate nagaimo alongside different greens and tubers in farmland, whereas jinenjo grows naturally.

Nagaimo is notable for its excessive moisture content material and low stickiness. As a substitute of grating it into tororo, it’s extra generally sliced thinly for salads or pickled dishes. Alternatively, it may be minimize into bigger items for simmered dishes, permitting folks to totally admire and revel in its texture.

Advisable recipes from Tororo/ Yamaimo

Tororo Gohan

Tororo Gohan
出典: sirogohan

If you happen to grate the Japanese yam immediately in a mortar, you’re going to get a clean grated yam. Japanese yam may be very sticky, so you might want to season it, unfold it with dashi soup, and eat it over barley rice. That is the way you get pleasure from your Tororo Gohan.

Kimchi Tororo Yaki

Kimchi Tororo Yaki
出典: macaroni

This can be a scrumptious snack with melty Japanese yam! To make this dish, you’ll need Kimchi, noodle soup, and egg white then add to Japanese yam which has already been pounded with a rolling pin, then positioned in a heat-resistant dish and baked. You should use each egg yolk and egg white, so there’s no waste!

Mentaiko Tororo Harumaki

Tororo Harumaki
出典: macaroni

To make this scrumptious Harumaki, you want combine it with mentaiko and mentsuyu, and make it into spring rolls. It’s simple to make because it doesn’t require loads of oil. It’s good as a facet dish for rice or as a snack. If you happen to lay down shiso leaves when rolling, the spring roll pores and skin won’t tear simply.

Historical past

The origin of Jinenjo/ Yamaimo

The historical past of untamed yam predates rice cultivation, talked about in Japan’s oldest e-book, the Kojiki, as “Tokoro.” Initially distinct from Japanese yam, it was as soon as bitter and inedible, but typically consumed within the Tohoku area.

With time, strategies developed, like including baking soda to take away bitterness, resulting in dishes like “Tororo Meshi.” Even throughout the Edo interval, figures like Shogun Tokugawa Ieyasu appreciated its well being advantages. Its reputation grew, immortalized in literature by figures like Matsuo Basho. At present, traditions persist, with “Tororo Meshi” remaining a New Yr’s customized in components of Japan.

Latest developments enable for wild yam cultivation in fields, making certain its continued presence in culinary tradition.

Historical past of Tororo Jiru

“Tororo soup” has a protracted historical past, and is a specialty of Maruko (at the moment Maruko, Suruga, Shizuoka Metropolis), which was the twentieth publish city on the 53 stations of the Tokaido. It’s in style amongst vacationers as a dish that will increase stamina.

It’s mentioned that it additionally seems in Ikku Jippensha’s novel “Tokaidochu hizakurige“, Hiroshige Utagawa’s ukiyo-e “The Fifty-Three Stations of the Tokaido” and Matsuo Basho’s haiku “Ume-wakana Maruko no yado no tororojiru”


Well being Advantages of Tororo

Assists in digestion and absorption

Tororo comprises plentiful quantities of starch-digesting enzymes similar to “amylase” and “diastase.” These enzymes facilitate digestion and improve the effectivity of nutrient absorption. Moreover, by selling metabolism, tororo successfully aids in fatigue restoration and bodily power enchancment.

Amylase and diastase are delicate to warmth, shedding their enzymatic exercise when heated. Therefore, it’s advisable to eat tororo both grated or sliced uncooked to retain its dietary advantages.

Helps regulate blood sugar and levels of cholesterol

Tororo comprises a sort of starch referred to as “resistant starch,” which slows down the rise in blood sugar ranges. Furthermore, it reveals related results to dietary fiber, remaining undigested within the small gut and aiding within the discount of blood ldl cholesterol and triglyceride ranges. This means potential advantages in lowering the chance of diabetes and hyperlipidemia. As resistant starch is heat-sensitive, consuming tororo uncooked permits for optimum nutrient consumption.

Moreover, the compound “saponin” present in tororo has a foaming property when dissolved in water, which helps dissolve fat. By inhibiting the absorption of extra fat, it may well forestall blood clot formation and scale back the buildup of peroxidized lipids, exhibiting potent antioxidant results.

Prevents way of life illnesses similar to hypertension

Tororo is efficient in stopping way of life illnesses similar to hypertension. The compound “choline” present in tororo improves lipid metabolism, reducing levels of cholesterol and contributing to the prevention of hypertension. Moreover, “lecithin,” a substance produced from choline, dissolves clots and prompts cell membranes, resulting in improved liver perform by way of the activation of liver cells.

Improves constipation and reduces swelling

Tororo is wealthy in dietary fiber, recognized to enhance bowel actions. Dietary fiber is available in two sorts: soluble fiber, which dissolves in water and slows down the absorption of sugar within the intestines, and insoluble fiber, which will increase stool quantity and stimulates bowel actions. Tororo is characterised by a balanced content material of each kinds of fiber, making it an efficient meals for assuaging constipation.

Furthermore, the mineral “potassium” helps get rid of extra water and salt from the physique, aiding within the discount of swelling within the legs and face. Since tororo and different uncooked greens are plentiful sources of potassium, consuming tororo uncooked permits for environment friendly potassium consumption.

Maintains bodily power

It’s mentioned that consuming yamaimo (tororo) enhances stamina. Yamaimo is wealthy in vitamin B group, important vitamins for changing carbohydrates and fat into vitality. Inadequate consumption of vitamin B group can result in a lower in vitality ranges. Yamaimo supplies each carbohydrates, the supply of vitality, and vitamin B group concurrently, contributing to the enhancement of stamina.

Furthermore, yamaimo is a meals that will increase the physique’s ranges of a hormone referred to as “DHEA.” DHEA assists within the manufacturing of testosterone, a sort of male hormone, and helps preserve muscle power. Subsequently, incorporating yamaimo into each day meals contributes to the upkeep of bodily power and well being.

The best way to retailer Tororo?

When storing tororo, freezing it’ll delay its shelf life. Grate the yamaimo (Japanese mountain yam), portion it into freezer baggage, eradicating extra air, and freeze. When utilizing, thaw naturally or underneath operating water to get pleasure from it with out shedding its vitamins.

Alternatively, if storing yamaimo earlier than grating, wrap it in newspaper to forestall drying, and retailer in a cool, darkish place with good air flow. Whereas it may be saved at room temperature, if the ambient temperature exceeds 20-25°C, it’s higher to retailer it within the vegetable compartment of the fridge to forestall spoilage. For partially used nagaimo, cowl the minimize floor with kitchen paper, wrap it in plastic wrap, and retailer it within the vegetable compartment of the fridge.

Tororo FAQ

The best way to Select Scrumptious Yamaimo to make Tororo?

Select yamaimo with skinny pores and skin, agency texture, and a clear floor with out scratches or blemishes. It’s mentioned that these with many root hairs or traces of root hairs have stronger stickiness.

Is Tororo and Gyutan a superb mixture?

Sure, Tororo and Gyutan is taken into account a superb mixture on account of its scrumptious style, harmonious textures, and dietary advantages. The delicate taste and distinctive texture of Tororo (grated Japanese mountain yam) completely complement the wealthy style of Gyutan (beef tongue), making it a extremely pleasant and satisfying culinary pairing.

The best way to make Tororo Gohan?

Elements (for 4 servings)

Good for 4 servings
Nagaimo 400g
Egg 1
Aonori seaweed to your liking
A Dashi soup 50ml
A Shoyu 1 and 1/2 tbsp
A Mirin 1 tbsp
A Salt 2-3 pinches



Getting ready Nagaimo

First, wash Nagaimo and peel the pores and skin with a peeler. If you happen to discover black components after peeling, take away them with a knife.


Seasoning Tororo Rice


Crack an egg right into a mortar and grate about 1/5 to 1/6 of the Japanese yam into it.


Utilizing a pestle, rub the egg whites completely till there aren’t any lumps


Grate the entire remaining Japanese yam and add to it, and use a pestle to combine it properly for about 2 minutes to make it smoother.


Add 50ml of seasoned yam soup inventory from A, 1 1/2 tablespoons of soy sauce, 1 tablespoon of mirin, and 2-3 pinches of salt.


Combine properly, examine the style, and if it’s not salty sufficient, add one other pinch of salt to regulate.



Pour it over scorching rice. garnish with Aonori seaweed or minimize seaweed to your liking.

Advisable Eating places/ Shops

Asakusa Mugitoro (浅草むぎとろ本店)

Tororo Cha-Soba
出典:浅草むぎとろ 公式サイト

Asakusa is filled with Japanese dishes which were cherished since historic occasions, similar to loach hotpot, sukiyaki, and eel! Positioned in Asakusa is the long-established Asakusa Mugitoro Fundamental Retailer, which was based in 1927. This kaiseki restaurant is known for the “Mugitoro” in its title. So you probably have an opportunity, how about giving this restaurant a attempt!

Deal with: 2 Chome-2-4 Kaminarimon, Taito Metropolis, Tokyo
Telephone quantity: +81120361066
Enterprise hours:
[Monday-Friday] 11:00–16:00, 17:00–22:30
[Saturday-Sunday] 11:00–22:30
Web site: https://www.mugitoro.co.jp/

Yamaimo no Ooi Ryori Ten (山芋の多い料理店)

The entrance
出典: 食べログ

Simply 2 minutes stroll from Nishikasai Station. This restaurant makes a speciality of yamaimo and tororo dishes, simply opened in February 2016. The dishes made utilizing solely rigorously chosen yams from contracted farmers and all around the nation are really beautiful! Additionally they have horigotatsu seating, which is in style for events, ladies’ nights out, and mothers’ teams with kids.

Deal with: 6 Chome−18−3 喜楽ビル, Nishikasai, Edogawa Metropolis, Tokyo
Telephone quantity: +81366614243
Enterprise hours:
[Sunday-Thursday] 17:00–23:00
[Friday-Saturday] 17:00–01:00


In conclusion, Tororo is a standard Japanese dish that holds a particular place within the hearts of many. Its easy but satisfying style, coupled with its wealthy cultural significance, makes it a beloved a part of Japanese delicacies. Whether or not loved as a breakfast staple or as a comforting meal throughout colder days, Tororo continues to deliver pleasure to those that take pleasure in its distinctive flavors. Its versatility and dietary advantages additional solidify its standing as a cherished culinary treasure.

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