When you choose frozen unagi kabayaki (eel grilled with a sweet soy glaze) for a year-end greeting or a gift, it is hard to tell how many grams each fillet is, whether noshi (gift wrapping label) and an inscription can be added, and whether the packaging can be chosen. This article looks at the “Domestic Extra-Large Whole Kabayaki Fillets (Nagayaki), 170g × 3” from うなぎ屋かわすい (when the “regular gift” packaging is chosen), using the Rakuten Ichiba product page (including the product description images) and Rakuten customer reviews, and organizes it into five points: quantity, storage and shelf life, ingredient labeling, suitability as a gift, and reviews.
What We Confirmed
- Quantity and roughly how many servings
- Storage method and shelf life
- Ingredients and allergen labeling
- Whether it works as a gift (noshi, inscription, packaging)
- Trends in public reviews
Basic Information
This table transcribes what is stated on the product page. However, the “not confirmed” labels and any notes we add are our own.
| Product name | Domestic Extra-Large Whole Kabayaki Fillets (Nagayaki), 170g × 3Source: Rakuten Ichiba product page (viewed October 14, 2026) |
|---|---|
| Product type | Domestic unagi gift set (a set of 3 extra-large domestic unagi kabayaki)Source: product description on the Rakuten Ichiba product page |
| Quantity | Domestic unagi whole kabayaki fillets (nagayaki), 170g × 3 (510g in total), and 6 sauce packets. The shop states a guide of “4 to 5 servings” in the product description imagesSource: product description and product description images on the Rakuten Ichiba product page |
| Options that change what you receive | Packaging: regular gift / birthday (same price and contents). Noshi can be added only with the regular gift packaging. This article covers the regular gift packagingSource: purchase section and product description images on the Rakuten Ichiba product page (viewed October 14, 2026) |
| Storage | Keep frozen (-18℃ or below)Source: product description on the Rakuten Ichiba product page |
| Best-before date | Stated as “6 months or more” (the starting point is not confirmed)Source: product description on the Rakuten Ichiba product page |
| Shelf life after thawing | not confirmed |
| Origin of main ingredient | Japanese eel (domestic). The region of origin is not confirmedSource: product description on the Rakuten Ichiba product page |
| Place of processing | not confirmed |
| Condition / how to eat (heating required?) | It arrives as frozen kabayaki. We found no statement on the product page saying whether it is raw or already cooked. The shop’s guidance is to thaw it and eat it warmed (hot-water bath, microwave, or thawing in a hot-water bath and then grilling in a fish grill or toaster oven)Source: product description images (how-to-eat guidance) |
| Thawing | The shop’s guidance gives three ways: thawing in a hot-water bath, using a microwave, or thawing in a hot-water bath and then grilling. For the details of timing and heat, please check the product description imagesSource: product description images (how-to-eat guidance) |
| Delivery | This product must be kept frozen. The type of chilled/frozen courier service and the carrier are not confirmed; please check the product pageSource: Rakuten Ichiba product page |
| Manufacturer | 川口水産株式会社Source: “Manufacturer / seller” field on the Rakuten Ichiba product page |
| Noshi / gifts | Noshi: supported only with the regular gift packaging. Packaging: gift box. Details are organized in “Suitable as a Gift?” belowSource: Rakuten Ichiba product page and product description images (viewed October 14, 2026) |
| Shop | うなぎ屋かわすい (Rakuten Ichiba) |
Prices are not listed here because they change. Please check the current price and stock availability at the link above.
Ingredients and allergen labeling
The product page lists the ingredients as follows (Source: product description on the Rakuten Ichiba product page, viewed October 14, 2026).
- Whole fillet: Japanese eel (domestic), soy sauce (contains wheat and soybeans), reduced starch syrup, fermented seasoning, sugars (sugar, high-fructose glucose syrup, starch syrup), mirin, powdered starch syrup, starch, yeast extract
- Included sauce: soy sauce (made in Japan; contains wheat and soybeans), fermented seasoning, sugar, mirin, eel extract, yeast extract
The allergen field states “wheat and soybeans.” We found no inconsistency within the product page. Whether sansho (Japanese pepper) comes with this product is not confirmed, as the product page has no statement about it. If you have an allergy, please contact the seller before buying, or always check the food information label on the product you receive.
Reference: Consumer Affairs Agency, Japan, “About Allergen Labeling” (accessed October 14, 2026)
Five Things to Check Before Buying
| What to check | For this product | Basis |
|---|---|---|
| 1. Quantity and servings | Whole fillets, 170g × 3 (510g in total). The shop states “4 to 5 servings” | Product description and product description images on the Rakuten Ichiba product page |
| 2. Storage and shelf life | Keep frozen (-18℃ or below); stated as “6 months or more.” Shelf life after thawing is not confirmed | Product description on the Rakuten Ichiba product page |
| 3. Ingredients and allergen labeling | Allergens are wheat and soybeans. Whether sansho is included is not confirmed | Product description on the Rakuten Ichiba product page |
| 4. Whether it works as a gift | Noshi is supported only with the regular gift packaging, and 8 kinds of inscription are shown, including “oseibo” (year-end gift). The last shipping date at year-end and the shop holidays are not confirmed | Rakuten Ichiba product page and product description images |
| 5. Review trends | Rakuten Ichiba rating 4.73/5 (346 reviews). We read 74 reviews: the first 60 in Rakuten’s standard order, plus 14 reviews filtered to ★1 to ★3 (posted June 2010–August 2026, latest August 2026). Many reviews say it was used as a gift and appreciated, while some felt it was small for something called “extra-large.” Reviews posted around year-end are few (a trend within what we read; it may not reflect the product’s current condition) | Rakuten customer reviews (viewed October 14, 2026) |
Suitable as a Gift?
The product page confirms that it supports noshi (gift wrapping label) and gift packaging (Source: Rakuten Ichiba product page and product description images, viewed October 14, 2026).
- Noshi: available only when “regular gift” is chosen. The birthday packaging is shown as not supporting noshi. The noshi service is shown as free (as of October 14, 2026; subject to change)
- Inscriptions: plain, birthday, uchi-iwai (return gift), thanks, kaiki-iwai (recovery celebration), kokorozashi, ochugen (mid-year gift), and oseibo (year-end gift) are lined up in the shop’s image. It is a noshi on which names can be entered; after choosing wrapping and noshi, you specify the inscription and joint names you want in the remarks field
- Packaging: the shop says it arrives in a gift box. The shop presents double packing, with the shipping slip attached to the outer box, and not enclosing anything that shows the price, as reassurance for gifts. A paper bag and a furoshiki (wrapping cloth) for handing over in person are shown as sold separately
- Delivery date and time: one image says “日時指定可” (date and time can be specified), but it is shown inside a banner about the ochugen (mid-year gift) period. The year-end slots and the order deadline are not confirmed
- Last shipping date at year-end and shop holidays over the New Year period: not found on the product page or in the product description images, so this is not confirmed. If you want it delivered within the year, please check the shop’s notice before buying
- Message card: we could not confirm this
- Effort on the recipient’s side: because it arrives frozen, check that they have freezer space for 510g and when they can receive it
The “Domestic Unagi Kabayaki 3-Type Set” from the same shop (3 types: 1 whole fillet + 2 cut kabayaki pieces + chopped unagi, with the eel totaling 280–330g) lets you choose the whole fillet size, sansho, and packaging. The product in this article is three 170g whole fillets, each laid out whole, and the only thing you can choose is the packaging (regular gift / birthday).
About 30 of the 60 reviews in the standard order mention using it as a gift and its being appreciated. They center on Father’s Day, Mother’s Day, ochugen (mid-year gift), and birthdays, and the only year-end reviews among the 74 we read are two ★3 reviews (December 2010 and January 2012) (a trend within what we read; it may not reflect the product’s current condition. Source: Rakuten customer reviews, viewed October 14, 2026).
What Public Reviews Say
We organized the Rakuten Ichiba product reviews by topic. Ratings are as of the date viewed and may change afterward.
| Site | Rating | Reviews | Date viewed |
|---|---|---|---|
| Rakuten customer reviews (product page) | 4.73 / 5 | 346 | October 14, 2026 |
Rating breakdown: 5★ 275 / 4★ 57 / 3★ 8 / 2★ 4 / 1★ 2 (as shown on Rakuten Ichiba, viewed October 14, 2026)
What we read: the first 60 reviews in Rakuten’s standard order (posted June 2010 to August 2026; latest August 2026), 2 ★1 reviews (2012 and 2013), 4 ★2 reviews (latest October 2023), and 8 ★3 reviews (latest May 2020), 74 in total. These are trends within what we read and may not reflect the product’s current condition. Most reviews are about gifts for Father’s Day, Mother’s Day, ochugen (mid-year gift), and birthdays, and reviews posted around year-end are few.
What Reviewers Praise
Appreciated by the recipient
About 30 of the 60 reviews in the standard order said it was used as a gift and appreciated by the recipient. Many were for Father’s Day, Mother’s Day, ochugen (mid-year gift), birthdays, or to celebrate someone leaving the hospital; about 7 were posted within the past 2 years.
Size of each fillet and satisfying portion
About 20 of the 60 reviews in the standard order said each fillet was large, thick, and satisfying to eat. Some wrote that it felt extra-large, as the product name says.
Softness of the meat
About 15 of the 60 reviews in the standard order said the meat was plump and soft, the bones were not noticeable, and there was no fishy smell.
Yearly or repeat orders
About 20 of the 60 reviews in the standard order said they order every year or several times; about 5 were posted within the past 2 years.
Source: Rakuten customer reviews (viewed October 14, 2026)
What Reviewers Note
Felt small for “extra-large”
3 of the 74 reviews we read (one each at ★1, ★2, and ★3; posted in 2011, 2013, and 2014) said it was smaller than they had imagined from the “extra-large” label. None were posted within the past 2 years.
How to check: the weight of each fillet, 170g, is written in the “Quantity” row of “Basic Information” in this article.
Small bones and delivery day
One review (★1, 2012) said there were many small bones, and one review (★2, 2013) said it arrived on the evening of Father’s Day itself. Both were posted more than 10 years ago, and there are none within the past 2 years.
How to check: for specifying the delivery date and time, what the product page shows and the points not confirmed are organized in “Suitable as a Gift?” in this article.
Source: Rakuten customer reviews (viewed October 14, 2026)
Who It Suits / Who Should Be Careful
Who It Suits
- You want to give three whole kabayaki fillets, each laid out whole
- You want noshi with an oseibo (year-end gift) inscription (regular gift packaging)
- You want a product that arrives frozen and is stated as “6 months or more” at -18℃ or below
Who Should Be Careful
- You have a wheat or soybean allergy
- You want to know the last shipping date within the year or the New Year holidays in advance (not confirmed on the product page)
- You want noshi with the birthday packaging (noshi is only for the regular gift packaging)
- You do not know whether the recipient has freezer space for 510g
Prices, stock, shipping fees, and delivery dates are subject to change. This article’s information-as-of date is October 14, 2026. Please be sure to check the listing at the link before purchasing.
This article contains affiliate links (advertising). Editorial Policy
Summary
- Three whole fillets of 170g (510g in total), and the shop’s guide is “4 to 5 servings.” The only thing you can choose is the packaging (regular gift / birthday), and noshi is available only with the regular gift packaging
- Keep frozen (-18℃ or below); stated as “6 months or more.” Shelf life after thawing and the region of origin are not confirmed, and the allergens are wheat and soybeans
- Eight kinds of noshi inscription are shown, including “oseibo” (year-end gift), while the last shipping date at year-end, the shop holidays, and the order deadline for specifying a delivery date and time are not confirmed. Reviews (a trend within what we read) center on gift posts, so if you want it delivered within the year, check the shop’s notice before buying
Related Pages
This article organizes information published on various retail and review sites. Product details such as quantity, 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 14, 2026 / Sources: Rakuten Ichiba “うなぎ屋かわすい” product page, Rakuten customer reviews, Consumer Affairs Agency, Japan, “About Allergen Labeling”
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