This is a frozen pack of headless, back-split unagi kabayaki (eel grilled with a sweet soy glaze), made with eel from Aichi Prefecture and delivered as 1 kg (5 to 6 eels) at once. It is sold on Rakuten Ichiba by 愛知県三河一色産 うなぎの兼光, and the manufacturer is listed as 兼光水産株式会社 of Nishio City, Aichi Prefecture. Each eel is extra-large at 176 g or more, individually wrapped and vacuum-packed, and 15 packets of sauce and sansho (Japanese pepper) are included. Based on what the Rakuten product page states, this article organizes the amount, storage, ingredient labeling, noshi (gift wrapping label) and reviews. Its features are the large 1 kg amount and noshi support, with inscriptions such as oseibo (year-end gift) to choose from.
At a Glance
Key points
- 1 kg (5 to 6 eels), at least 176 g per eel. Among the 6 unagi kabayaki items featured on Ochinity (as of October 17, 2026), the total of 1,000 g is the largest, and the next largest is 600 g (a weak point: the number of eels varies from 5 to 6)
- Noshi is supported, with inscriptions such as oseibo (year-end gift), ochugen (mid-year gift) and uchi-iwai (return gift) to choose from. The item arrives in a simple box, and a paid gift box is described as sold separately
- Individually wrapped and vacuum-packed, with 15 packets of sauce and sansho. It must be kept frozen (−18°C or below), and the best-before date is stated as 1 month or more
- Rakuten rating 4.77 (2,071 reviews), viewed October 17, 2026. This is the highest figure among the 6 items above, but the gap from the second highest, 4.76 (166 reviews), is small
Watch out for
- The number of eels varies from 5 to 6, and a review says 6 small eels arrived. The shelf life after thawing and the last shipping date at year-end are not found on the product page and are not confirmed
Suits: People who want to keep a large amount in the freezer and warm only what they want to eat, and people who want to give it with noshi bearing an inscription such as oseibo
The scope of the comparison is the 6 unagi kabayaki items featured on Ochinity (as of October 17, 2026). Each value is as of the date its own article was researched and may differ from the current listing. The key points are from the Rakuten Ichiba product page and its guide images (viewed October 17, 2026). The rating is as shown on Rakuten (viewed October 17, 2026); it is a trend within what we read and may not reflect the product’s current condition.
Compared with 6 Similar Unagi Kabayaki Items
Among the 6 unagi kabayaki items featured on Ochinity (as of October 17, 2026). Each value is as of the date its own article was researched and may differ from the current listing. Ratings are as shown on Rakuten, and the fewer the reviews, the more easily the figure moves. The rows put this article first, followed by the others in the Japanese gojūon (syllabary) order of the product names.
| Product | Total amount | Contents | Rakuten rating |
|---|---|---|---|
| うなぎの兼光 Extra-Large, 1 kgThis article | 1,000 g | Headless, back-split, 5 to 6 eels | 4.772,071 reviews |
| うなぎ屋かわすい 3-Type Set | 280 g, 300 g, 330 g | 3 types: whole kabayaki fillet, cut kabayaki and chopped | 4.6219,544 reviews |
| 大五うなぎ工房 Whole Kabayaki Fillet | 240 g | Whole kabayaki fillet, 2 eels | 4.692,074 reviews |
| 浜名湖 うなぎのたなか Extra-Large Whole Kabayaki Fillet | 540 g, 600 g | Extra-large whole kabayaki fillet, 3 pieces | 4.76166 reviews |
| 浜名湖グルメマーケット Asajime UnagiChilled delivery | 450 g | Kabayaki, 3 eels | 4.48161 reviews |
| 港ダイニングしおそう Large Size | 330 g | About 165 g × 2 eels | 4.561,864 reviews |
You can go to each product’s article from its name. The total amount and contents are as shown in each article, and for products with several specifications, the selectable total amounts are listed.
- The total of 1,000 g is the largest among the 6 unagi kabayaki items featured on Ochinity (as of October 17, 2026), about 1.7 times the next largest, 浜名湖 うなぎのたなか (600 g). However, the number of eels varies from 5 to 6, and the size of each eel is stated as 176 g or more
- The Rakuten rating of 4.77 is the highest figure among the 6. The review count is 2,071, fewer than the 19,544 of うなぎ屋かわすい, and the second highest rating, 4.76 for 浜名湖 うなぎのたなか, has 166 reviews
Basic Information
- Product Name
- うなぎの兼光 国産 特大 176g以上 1kg 5〜6尾（愛知県三河一色産） (in English: Domestic, Extra-Large, 176 g or more, 1 kg, 5 to 6 eels)
- Amount
- Headless, back-split unagi kabayaki, 1 kg (5 to 6 eels). At least 176 g per eel. 15 packets of sauce and sansho included
- Choices
- Dispatch method (from a Rakuten warehouse or shipped by the shop). The contents are the same
- Storage Method
- Keep frozen (−18°C or below)
- Best-Before Date
- 1 month or more if kept frozen (the shop’s statement)
- Country of Origin of Ingredients
- Eel: Aichi Prefecture
- How to Eat
- The page says to warm it in a microwave. It also states that small bones require care
- Allergen Labeling
- Wheat and soybeans (from the soy sauce)
- Shipping
- Frozen delivery (Sagawa Express (佐川急便) for items dispatched from a Rakuten warehouse, Yamato Transport (ヤマト運輸) for items shipped by the shop)
- Noshi / Gift
- Noshi supported (shown as free as of October 17, 2026; this may change). Inscriptions such as oseibo (year-end gift) are available. Arrives in a simple box
- Manufacturer
- 兼光水産株式会社 (Nishio City, Aichi Prefecture)
This list transcribes what is stated on the product page. However, the “not confirmed” labels and any notes we add are our own.
If you have an allergy, ask the seller before buying, or be sure to check the label on the product you receive (Reference: Consumer Affairs Agency, Japan, “About Allergen Labeling”, accessed October 17, 2026).
See the transcribed details, sources and “not confirmed” items (17 items)
This list transcribes what is stated on the product page. However, the “not confirmed” labels and any notes we add are our own.
- Product Name
- うなぎの兼光 国産 特大 176g以上 1kg 5〜6尾（愛知県三河一色産）The product name shown on the Rakuten Ichiba page is a long string with many search keywords. Only the product-name part is shown here.
- Amount
- The page states headless, back-split unagi kabayaki, 176 g or more per eel, 1 kg in total (5 to 6 eels), with 15 packets of sauce and sansho. The product description says extra-large size (176 g or more per eel), individually wrapped and vacuum-packed. The number of servings in the shop’s wording is Not confirmedSource: Rakuten Ichiba product page (viewed October 17, 2026)
- Choices
- Dispatch method: dispatched from a Rakuten warehouse (Sagawa Express, frozen delivery) or shipped by the shop (Yamato Transport, frozen delivery). The contents are the same either way, and the shop-shipped option is stated to ship within 2 to 3 business daysSource: selection field of the Rakuten Ichiba product page (viewed October 17, 2026)
- Storage Method
- Keep frozen (−18°C or below)Source: product description on the Rakuten Ichiba product page
- Best-Before Date
- Stated as 1 month or more if kept frozen (−18°C or below)Source: product description on the Rakuten Ichiba product page
- Thawing
- The cooking-method field says to warm it in a microwave. Figures for the microwave time and other steps such as a hot-water bath are Not confirmed. A leaflet with instructions on how to eat it is said to be enclosedSource: product description on the Rakuten Ichiba product page
- Notes After Opening
- Because of the nature of seafood, small bones that cannot be fully removed remain, and the page says to be careful when eating. The shelf life after thawing is Not confirmedSource: product description on the Rakuten Ichiba product page
- Ingredients
- Unagi kabayaki: eel (from Aichi Prefecture), soy sauce (contains wheat and soybeans), sugar, sugar-blended glucose-fructose syrup, fermented seasoning, starch syrup, salt, eel extract / alcohol, colorings (caramel, gardenia, red yeast rice), seasoning (amino acids, etc.), thickeners (modified starch, polysaccharide thickeners). Included sauce: soy sauce (contains wheat and soybeans, made in Japan), sugar, mirin, salt, fermented seasoning, starch. Included: sansho (Japanese pepper)Source: product description on the Rakuten Ichiba product page
- Allergen Labeling
- Wheat and soybeans (from the soy sauce). We found no inconsistency in the labeling within the product pageSource: product description on the Rakuten Ichiba product page
- Country of Origin of Ingredients
- Eel (from Aichi Prefecture)Source: product description on the Rakuten Ichiba product page
- Place of Processing
- Not confirmed. The seller explains that it runs an integrated system from eel farming to kabayaki processing within the 兼光グループ, but we found no statement of the address of the processing siteSource: product description on the Rakuten Ichiba product page
- Condition / How to Eat (Heating Required?)
- It is introduced as a kabayaki that arrives frozen and is warmed in a microwave to eat. We found no figures for heating time or temperature, and no statement on whether it can be eaten rawSource: product description on the Rakuten Ichiba product page
- Shipping
- Frozen delivery. Depending on the dispatch method, the carrier is Sagawa Express (dispatched from a Rakuten warehouse) or Yamato Transport (shipped by the shop). We found no mention of “あす楽” (Rakuten’s next-day delivery service)Source: selection field of the Rakuten Ichiba product page (viewed October 17, 2026)
- Shipping Time
- The shop-shipped option is stated to ship within 2 to 3 business days. The last shipping date at year-end (the oseibo season) and guidance on specifying a delivery date were not found on the product page or its guide images: Not confirmedSource: Rakuten Ichiba product page (viewed October 17, 2026)
- Noshi / Gift
- Noshi: supported (shown as free as of October 17, 2026; this may change). The page says that on the checkout screen you specify noshi registration and whether to print a name. Inscriptions: for the bow-knot (chō-musubi) type, 無地 (plain), 内祝 (return gift), 御祝 (celebration) and 御礼 (thanks); for the tied-knot (musubi-kiri) type, 内祝 (return gift); and for the original noshi with an illustration of うなぎの兼光, 御歳暮 (oseibo, year-end gift), 御中元 (ochugen, mid-year gift), 敬老の日 (Respect for the Aged Day), 父の日 (Father’s Day) and 母の日 (Mother’s Day). The page also says noshi cannot be attached to some items whose specifications are fixed. Packaging: the item arrives in a simple box for frozen goods covered with clear shrink film, and when noshi is specified, the page says the noshi is attached over the film and the box is put in a Yamato Transport paper bag. Gift boxes (large and small) are described as sold separately for a fee and must be bought at the same time; whether they can be chosen on this page is Not confirmed. We found no mention of a message cardSource: Rakuten Ichiba product page and guide images (viewed October 17, 2026)
- Manufacturer
- 兼光水産株式会社 (Isshiki-cho, Nishio City, Aichi Prefecture)Source: product description on the Rakuten Ichiba product page
- Shop
- 愛知県三河一色産 うなぎの兼光 (Rakuten Ichiba)
Prices are not listed here because they change. Please check the current price and stock availability at the link above.
What Public Reviews Say
We organized the Rakuten Ichiba product reviews by point. Rating figures are as of the viewing date and change afterward. The points below are trends within what we read and may not reflect the product’s current condition.
| Site | Rating | Reviews | Date viewed |
|---|---|---|---|
| Rakuten customer reviews (product page) | 4.77 / 5 | 2,071 | October 17, 2026 |
Rating breakdown: 5★ 1,717 / 4★ 278 / 3★ 40 / 2★ 19 / 1★ 17 (as shown on Rakuten Ichiba, viewed October 17, 2026)
What we read: the first 60 reviews in Rakuten’s default order (posted December 2025 to October 2026; latest October 2026), 16 of the 17 reviews rated 1★ (posted March 2018 to July 2026) and all 19 reviews rated 2★ (posted February 2019 to June 2026), 95 in total. These are trends within what we read and may not reflect the product’s current condition.
The 1★ and 2★ reviews total 36, and most were posted long ago (within the past 2 years, there is 1 review at 1★ and 3 at 2★ among those we read). The counts below are approximate figures from our reading of the text, and do not include posts that are only about shipping or the shop’s service.
What Reviewers Praise
Plump, tender and thick (about 19 of the 60)
About 19 of the 60 reviews in default order said the flesh was plump, tender or thick. Some also mention re-grilling it in a frying pan or on a grill in addition to using a microwave (the reviewers’ own accounts).
Size and satisfying portion (about 15)
About 15 of the 60 reviews in default order said each eel is large and satisfying to eat. Some describe sharing one eel among several people.
Given as a gift and appreciated (about 18)
About 18 of the 60 reviews in default order said they gave it to family, relatives or people who had helped them, and that it was appreciated.
Repeat purchases (about 21)
About 21 of the 60 reviews in default order said they bought it again or buy it every year.
Source: Rakuten customer reviews (viewed October 17, 2026)
What Reviewers Note
Small bones (16 of the 35 reviews at 1★ and 2★)
16 of the 35 reviews at 1★ and 2★ that we read said there were many small bones or that bones were left in the mouth. Of these, 3 were posted in October 2024 or later.
How to check: the product description on the product page includes a note that small bones that cannot be fully removed remain. It is covered in “Notes After Opening” under “Basic Information” in this article.
Odor or fishy smell (11 of the 35 reviews at 1★ and 2★)
11 reviews said they noticed an odor or a fishy smell. The latest was posted in May 2024, and there are none from the past 2 years (October 2024 onward).
Variation in the number and size of eels (2 of the 60 in default order)
2 of the 60 reviews in default order said they had expected 5 large eels but received 6 small ones. Among the 19 reviews at 2★, about 4 make the same point. The product page states 5 to 6 eels, each 176 g or more.
How to check: the range in the number of eels is covered in “Amount” under “Basic Information” in this article.
Source: Rakuten customer reviews (viewed October 17, 2026)
Summary: Is This the One for You?
Why choose it: You want to keep 1 kg (5 to 6 eels) in the freezer and warm only what you want to eat, and you want to give it with noshi bearing an inscription such as oseibo. If both are what you need, this item fits. The total of 1,000 g is the largest among the 6 unagi kabayaki items featured on Ochinity (as of October 17, 2026) (a weak point: the number of eels varies from 5 to 6, and the shelf life after thawing and the last shipping date at year-end are not confirmed).
- Individually wrapped and vacuum-packed. The best-before date for keeping it frozen (−18°C or below) is stated as 1 month or more. 15 packets of sauce and sansho are included
- Noshi is supported (shown as free as of October 17, 2026; this may change), and the inscriptions include oseibo, ochugen, uchi-iwai (return gift), celebration and thanks. A paid gift box is described as sold separately
- The Rakuten rating is 4.77 / 5 (2,071 reviews). Among the 95 reviews we read, many mention plump, tender flesh (about 19 of the 60 in default order) and repeat purchases (about 21)
Other options: For a smaller amount, 大五うなぎ工房 Domestic Unagi Whole Kabayaki Fillet, 2 Eels (240 g). To compare three types (whole kabayaki fillet, cut kabayaki and chopped), うなぎ屋かわすい 3-Type Set (280–330 g).
This section is based on the Rakuten Ichiba product page and Rakuten customer reviews (viewed October 17, 2026). It is a trend in the reviews within what we read and may not reflect the product’s current condition.
Prices, stock, shipping fees, and delivery dates are subject to change. This article’s information-as-of date is October 17, 2026. Please be sure to check the listing at the link before purchasing.
This article contains affiliate links (advertising). Editorial Policy
This article organizes information published on various retail and review sites. Product details such as amount, storage method and ingredients are subject to change. Please check the seller’s listing for the latest information.
Comments on taste or quality are summarized from third-party posts cited with their source, and are not Ochinity’s own evaluation. Our approach to writing articles is described in our Editorial Policy.
Information as of: October 17, 2026 / Sources: Rakuten Ichiba “愛知県三河一色産 うなぎの兼光” product page, Rakuten customer reviews, Consumer Affairs Agency, Japan, “About Allergen Labeling”
