大五うなぎ工房’s “Domestic Unagi Long Kabayaki, 2 Eels” is frozen unagi kabayaki (eel grilled with a sweet soy glaze): two long fillets of about 120g each, with small packets of sauce and sansho (Japanese pepper). You choose the packaging from a gift box or a gift box plus furoshiki (wrapping cloth). Review trends are summarized with conditions, based only on the reviews we read. This article organizes the Rakuten Ichiba product page and Rakuten customer reviews into five points: quantity, shelf life, ingredient labeling, suitability as a gift, and reviews.
What We Confirmed
- Quantity and how many servings
- Storage method and shelf life
- Ingredients and allergen labeling
- Whether it works as a gift
- 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 | 大五うなぎ工房 Domestic Unagi Long Kabayaki, 2 Eels (gift packaging) |
|---|---|
| Product type | Set of 2 long kabayaki eelsSource: product description on the Rakuten Ichiba product page (viewed October 10, 2026) |
| Quantity | Long kabayaki (about 120g) × 2 eels. Comes with small packets of sauce and sansho. The number of servings is not confirmedSource: same as above, and the product description images |
| Packaging options | Choose from 2 types: gift box / gift box + furoshiki. The product description images state that the furoshiki option costs extraSource: purchase section of the Rakuten Ichiba product page, and the product description images |
| Storage | The page says to store it in the freezer (-18℃ or below)Source: product description on the Rakuten Ichiba product page |
| Best-before period | About 2 months (stated to be printed on the product)Source: same as above |
| Origin of main ingredient | Eel (domestic, Japanese eel / Anguilla japonica). The detailed origin, such as the prefecture, is not confirmedSource: same as above |
| Place of processing | Not confirmed. The shop’s product description images state that it is made in-house at a workshop in the Oi River basinSource: product description images |
| Condition / how to eat (heating required?) | The product description says the kabayaki is heated for longer than the usual kabayaki process. As for how to eat it, the page says to warm it in a hot-water bath and serve it over rice with the sauce. We found no information on whether it can be eaten without heatingSource: product description on the Rakuten Ichiba product page |
| Thawing / after opening | Not stated on the product page; not confirmed. How long it keeps after thawing is also not confirmedSource: same as above |
| Delivery | The page says it is delivered nationwide by refrigerated (frozen) courier. The estimated shipping time for both packaging types was shown as within 1–2 days (excluding shop holidays) (as of October 10, 2026)Source: product description and purchase section of the Rakuten Ichiba product page |
| Manufacturer | Not confirmed. The shop’s product description images state that all kabayaki are made in-houseSource: product description images |
| Shop | 大五うなぎ工房 (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: eel (domestic, Japanese eel), soy sauce (contains wheat and soybeans), mirin, fermented seasoning, sugar / thickener (processed starch). The allergens listed as specified ingredients (tokutei genzairyo, Japan’s labeled allergens) are wheat and soybeans.
We found no separate ingredient listing for the sauce and sansho packets; this is not confirmed. We also found no information about other products made in the same factory; not confirmed. If you have concerns, check with the seller before buying and always check the label on the product you receive.
Reference: Consumer Affairs Agency, Japan, “About Allergen Labeling” (accessed October 10, 2026)
Five Things to Check Before Buying
| What to check | For this product | Basis |
|---|---|---|
| 1. Quantity / servings | Long kabayaki (about 120g) × 2 eels. Comes with small packets of sauce and sansho. The number of servings is not confirmed | Product description and product description images on the Rakuten Ichiba product page |
| 2. Storage and shelf life | Store in the freezer (-18℃ or below). Best-before period about 2 months (stated to be printed on the product). Thawing method and shelf life after thawing are not confirmed | Product description on the Rakuten Ichiba product page |
| 3. Ingredients / allergen labeling | Ingredients: eel (domestic, Japanese eel), soy sauce, mirin, fermented seasoning, sugar, thickener (processed starch). Specified allergens: wheat, soybeans | Product description on the Rakuten Ichiba product page |
| 4. Suitable as a gift? | Choose gift box / gift box + furoshiki. The product description images say noshi is available, but the gift section of the product page shows no such option, so check on the purchase screen | Rakuten Ichiba product page (purchase and gift sections), product description images |
| 5. Review trends | Rakuten Ichiba rating 4.69/5 (2,074 reviews). We read 59 reviews in Rakuten’s standard (default) order (posted March–October 2026, latest October 2026), all 25 ★1 reviews (posted June 2020–August 2026, latest August 2026), and all 26 ★2 reviews (posted January 2020–July 2026, latest July 2026). The following are trends within what we read and may not reflect the product’s current condition. Many said it was appreciated as a gift, while among ★1 and ★2 reviews, comments that it was small or thin stand out | Rakuten customer reviews (viewed October 10, 2026) |
Suitable as a Gift?
Here is what we could confirm from the product page and product description images (viewed October 10, 2026).
- Packaging: choose from 2 types, gift box / gift box + furoshiki (a woven wrapping cloth). The product description says it is delivered in a gift case for presents. The product description images also say it comes in a gift box and is double-packed (both are the shop’s statements)
- Noshi: the product description images say various types of noshi are available, chosen from the options in the shopping cart or written in the remarks field on the order confirmation screen. However, the gift section of the product page shows no support for noshi, wrapping, or message cards. The types of inscription (on noshi) are only described as “various” in the image and are not confirmed. Please check the options on the purchase screen
- Seasonal options: a note in the product description images says that if you choose the Father’s Day or Respect for the Aged Day option, a wrapper and message card prepared by the shop are attached, so noshi cannot be added. The current purchase section offered 2 packaging types: gift box and gift box + furoshiki
- Message cards / name printing: we could not confirm these on the product page
- The product description images say that no statement or delivery slip showing the price is enclosed
- Delivery date selection: we could not confirm whether it is possible; not confirmed. Because it arrives by frozen delivery, check in advance when the recipient can receive it
Many reviews mention buying it as a gift for Mother’s Day, Father’s Day, Respect for the Aged Day, birthdays, and similar occasions. On the other hand, some reviews say it did not arrive in time for Father’s Day, so if you have a fixed date for the gift, it is safer to order with time to spare (Source: Rakuten customer reviews, viewed October 10, 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. We read 110 reviews in total, and the following are trends within what we read. They may not reflect the product’s current condition.
| Site | Rating | Reviews | Date viewed |
|---|---|---|---|
| Rakuten customer reviews (product page) | 4.69 / 5 | 2,074 | October 10, 2026 |
Rating breakdown: ★5 1,588 / ★4 398 / ★3 37 / ★2 26 / ★1 25 (as shown on Rakuten Ichiba, viewed October 10, 2026)
What we read: 59 reviews in Rakuten’s standard (default) order (posted March–October 2026, latest October 2026), all 25 ★1 reviews (posted June 2020–August 2026), and all 26 ★2 reviews (posted January 2020–July 2026), 110 in total. We did not read ★3 reviews. The 59 reviews in standard order list newer posts first and are mainly from around Mother’s Day, Father’s Day, Respect for the Aged Day, and Doyo no Ushi no Hi (the midsummer eel-eating day) (all ★4 or ★5). To see long-term trends, we read every ★1 and ★2 review. These are trends within what we read and may not reflect the product’s current condition.
What Reviewers Praise
Appreciated as a gift
About 34 of the 59 reviews in standard order said the recipient was pleased (34 of them posted in the last 2 years). Most were gifts for Mother’s Day, Father’s Day, birthdays, and the like.
Softness / plumpness
About 6 of the 59 standard-order reviews said the flesh was soft, plump, or could be cut with chopsticks (6 of them posted in the last 2 years).
Size / thickness
About 6 of the 59 standard-order reviews said it was large, thick, or filling (6 of them posted in the last 2 years).
Box / packing
4 of the 59 standard-order reviews mentioned that the gift box and packing were sturdy (4 of them posted in the last 2 years).
Source: Rakuten customer reviews (viewed October 10, 2026)
What Reviewers Note
Small / thin / smaller than the photo
About 20 of all 51 ★1 and ★2 reviews said it was smaller than expected or than the photo, or that the flesh was thin (about 7 of them posted in the last 2 years). These posts span 2020 to 2026. Some said the taste was good but the size was disappointing.
How to check: the weight per eel is in the “Quantity” row of “Basic Information” in this article (about 120g × 2 eels). The actual length and thickness are not stated on the product page and are not confirmed.
Bones
About 5 of all 51 ★1 and ★2 reviews said a bone stuck in their mouth or that there were thick bones (1–2 of them posted in the last 2 years).
Late delivery / missed arrival dates
About 5 of all 51 ★1 and ★2 reviews complained about the arrival date, such as not arriving in time for Father’s Day or not arriving in the morning (about 3 of them posted in the last 2 years).
How to check: whether you can choose a delivery date is covered in the “Suitable as a Gift?” section of this article. The estimated shipping time is in the “Delivery” row of “Basic Information”.
Source: Rakuten customer reviews (viewed October 10, 2026)
Who It Suits / Who Should Be Careful
Who It Suits
- You want frozen unagi kabayaki that you warm in a hot-water bath and serve over rice
- You want to choose gift box or gift box + furoshiki packaging for a gift
- You want eel labeled as domestic Japanese eel
- You are looking for a set of 2 eels with sauce and sansho packets
Who Should Be Careful
- You have a wheat or soybean allergy (listed as specified allergens)
- The size or thickness of each eel matters to you (about 120g × 2 eels; actual dimensions are not confirmed, and some reviews say they are small)
- You need noshi for your gift (the shop’s guidance and the gift section of the product page do not match, so check on the purchase screen)
- You have a fixed gift date and must choose the delivery date (whether this is possible is not confirmed)
- You want to know the thawing method or shelf life after thawing in advance (not stated on the product page)
Prices, stock, shipping fees, and delivery dates are subject to change. This article’s information-as-of date is October 10, 2026. Please be sure to check the listing at the link before purchasing.
This article contains affiliate links (advertising). Editorial Policy
Summary
- The quantity is long kabayaki (about 120g) × 2 eels, with sauce and sansho packets. Store in the freezer (-18℃ or below); the best-before period is said to be about 2 months. The thawing method and shelf life after thawing are not stated on the product page
- The eel is domestic Japanese eel, and the specified allergens are wheat and soybeans. For noshi, the shop’s guidance image and the gift section of the product page do not match, so check the options on the purchase screen
- Many reviews say it was appreciated as a gift, while ★1 and ★2 reviews often say it was small or thin. These are trends within the 110 Rakuten reviews we read and may not reflect the product’s current condition
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 10, 2026 / Sources: Rakuten Ichiba “大五うなぎ工房” product page (including product description images), Rakuten customer reviews, Consumer Affairs Agency, Japan, “About Allergen Labeling”
![Featured image. Product photo of Masuyone Echizen Amaebi without roe 500g (small size, wakeari): reddish shell-on sweet shrimp (amaebi) with heads and long antennae, piled tightly across a black bowl. Text the shop placed in the image: “訳ありでお得な［越前甘えび］をたっぷりとお届け。” (a generous helping of the good-value wakeari [Echizen amaebi]) and “［訳あり］子なし越前甘えび 500g” ([wakeari] Echizen amaebi without roe, 500g)](https://ochinity.com/wp-content/uploads/2026/10/eye-ebi-masu10000332-en-300x158.webp)
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