With mini-size maguro kakuni (simmered tuna cubes), it is hard to tell from the product name alone how much is in one bag, how much is in the whole set, and where the best-before date is written. This article organizes what the product page says about the maguro kakuni sold by かつおのタタキとまぐろの大熊 (Teiban standard type, 3 bags, without pochibukuro, a small envelope) under five points: amount, shelf life, ingredient labeling, suitability as a gift, and reviews. The main feature of this product is that it is delivered in simple Nekopos (ネコポス) packaging, and the page states that gift wrapping is not available.
What We Confirmed
- Amount and a rough guide to 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 | Maguro Kakuni Mini Size, Teiban (3 bags, without pochibukuro) (まぐろ角煮 ミニサイズ 定番（3袋・ポチ袋なし）)Source: Rakuten Ichiba product page (viewed October 15, 2026) |
|---|---|
| Name (food label field) | Simmered tuna cubes (まぐろの角煮; mini size × 3-item set)Source: Rakuten Ichiba product page (name field of the product description) |
| Amount | 3-bag set. The product name states 70g per bag. The amount field in the product description reads “国産まぐろの角煮、そぼろ 2〜3パック（約140〜210g）” (maguro kakuni and soboro made with domestic tuna, 2 to 3 packs, about 140–210g), a range, so the total for this variant cannot be fixed to a single figure from the product page. A rough guide to servings is not confirmedSource: same as above |
| Choices | You choose from “定番 まぐろ角煮（3袋）” (Teiban Maguro Kakuni, 3 bags) / “生姜スペシャル まぐろ角煮（2袋・3袋）” (Ginger Special Maguro Kakuni, 2 or 3 bags) / “まぐろそぼろ（3袋）” (Maguro Soboro, 3 bags), and the selection field also offers with or without pochibukuro (small envelope). This article covers “定番 まぐろ角煮（3袋）・ポチ袋なし” (Teiban Maguro Kakuni, 3 bags, without pochibukuro). What the pochibukuro contains is not confirmedSource: selection field on the Rakuten Ichiba product page |
| Storage Method | Store at room temperature, away from high temperature and humidity. After opening, the page advises keeping it in the refrigerator and eating it soonSource: storage method field of the product description |
| Best-Before Date | The page says it is written on the product label attached to the packing material (a cardboard envelope), and is 180 days after manufacture (unopened). Whether the bag of the product itself carries a date is not confirmedSource: best-before date field of the product description |
| Origin of Raw Materials | 太平洋 (Pacific Ocean)Source: raw material origin field of the product description |
| Processing Location | not confirmed |
| State / How to Eat (Whether Cooking Is Required) | The page says it is already seasoned, needs no cooking, and can be eaten as it is. We found no guidance about heating. Suggested ways to eat it are as a side dish for rice, as a filling for bento (boxed lunches) and onigiri (rice balls), and as a late-night snack with drinksSource: product description |
| Delivery | Nekopos delivery (dropped into the mailbox), shipped at room temperature. The page says shipment is planned within 5 of the shop’s business days. It also carries a note that the inside of a mailbox can become hot in summerSource: shipping estimate and product description on the product page |
| Manufacturer | No manufacturer is listed (not confirmed). The seller is listed as “（株）大熊高知工場” (Kochi City, Kochi Prefecture)Source: seller field of the product description |
| Shop | かつおのタタキとまぐろの大熊 (Rakuten Ichiba) |
Prices are not listed because they change. Please check the latest price and stock at the link above.
Ingredients and Allergen Labeling
The ingredient name field of the product description lists bigeye tuna (メバチまぐろ, Pacific Ocean), light brown sugar (三温糖), soy sauce, starch syrup (水飴, mizuame), ginger, sake (清酒), and agar (寒天), with “一部に大豆、小麦を含む” (contains soybeans and wheat as part of the ingredients) added at the endSource: ingredient name field of the product description. Viewed October 15, 2026。The ingredient name field appears in only one place, so the ingredients for each variant, such as Ginger Special and Maguro Soboro, are not confirmed.
As far as we could confirm in the food labeling field, the allergens are soybeans and wheat, but the product page says nothing about any other items. If you have allergies, either ask the shop before buying or be sure to check the food information label on the product you receive.
Reference: Consumer Affairs Agency, Japan, “About Allergen Labeling” (viewed October 15, 2026)
Five Things to Check Before Buying
| What to Check | For This Product | Basis |
|---|---|---|
| 1. Amount / servings | 3-bag set (the product name states 70g per bag). The amount field gives a range of 2 to 3 packs (about 140–210g). How many servings it makes is not confirmed | Rakuten Ichiba product page |
| 2. Storage and shelf life | Store at room temperature. The best-before date is 180 days after manufacture (unopened), and the page says it is written on the label attached to the packing material (a cardboard envelope) | Rakuten Ichiba product page |
| 3. Ingredients and allergen labeling | Bigeye tuna, light brown sugar, soy sauce, starch syrup, ginger, sake, agar. A note that soybeans and wheat are contained as part of the ingredients is listed | Rakuten Ichiba product page |
| 4. Whether it works as a gift | Not available as a gift. It is delivered in simple Nekopos packaging, and no noshi (gift wrapping label), wrapping, or message card is offered either | Rakuten Ichiba product page (viewed October 15, 2026) |
| 5. Trends in reviews | The Rakuten Ichiba rating is 4.55 / 5 (674 reviews). Among the 60 reviews read in the default order (Rakuten’s default; posted October 2025 to October 2026, latest October 5, 2026), many mention the seasoning or how well it goes with rice, while the 17 reviews rated 1★ or 2★ include posts saying the flavor is strong, the amount is small, or there are hard parts. This trend may not reflect the product’s current condition | Rakuten customer reviews (viewed October 15, 2026) |
Suitable as a Gift?
The product description states that this product is not available as a gift. It describes the item as “wakeari” (a Japanese shopping label for items sold with a stated reason; here, the stated reason is that delivery is by Nekopos, so gift wrapping is not available), and it arrives in simple packaging for home use. The page also suggests it as a trial or tasting before sending a gift (Source: Rakuten Ichiba product page, viewed October 15, 2026).
- Noshi: no mention of support (the gift field on the product page shows no support)
- Wrapping / message card: no mention of support. The page says wrapping is not available
- Delivery: Nekopos (dropped into the mailbox). Whether a delivery date and time can be specified is not confirmed
Note that the lower part of the same product page carries shop-wide information about gift boxes and paid gift wrapping, but for this product the product description clearly states that gift wrapping is not available. This article does not treat this product as one for gifts. Among the 60 reviews read in the default order, 2 said they bought it as a gift or as a present for family, but the shop’s information is that it is not available as a gift. This trend may not reflect the product’s current condition (Source: Rakuten customer reviews, viewed October 15, 2026).
What Public Reviews Say
We organized the Rakuten Ichiba product reviews by point. Rating figures are as of the viewing date and change afterward.
| Site | Rating | Reviews | Viewed |
|---|---|---|---|
| Rakuten customer reviews (product page) | 4.55 / 5 | 674 reviews | October 15, 2026 |
Rating breakdown: 5★ 450 / 4★ 165 / 3★ 42 / 2★ 13 / 1★ 4 (as shown on Rakuten Ichiba, viewed October 15, 2026)
What we read: 60 reviews in Rakuten’s default order (posted October 2025 to October 2026; latest October 5, 2026), 4 filtered to 1★ (posted January 2023 to January 2026), and 13 filtered to 2★ (posted June 2023 to March 2026), 77 in total. The 60 reviews in the default order also include posts by people who chose Ginger Special or Maguro Soboro. These are trends within what we read and may not reflect the product’s current condition.
What Reviewers Praise
Seasoning
Of the 60 reviews in the default order, 36 said they were satisfied with the sweet-savory seasoning or the ginger flavor. All 60 were posted within the last two years.
Goes with rice, onigiri, and bento
Of the 60, 26 mentioned that it goes well as a side dish for rice, as an onigiri filling, or in a bento.
Convenience of room-temperature storage and small portions
Of the 60, 15 said it is easy to use because it can be stored at room temperature and is divided into small bags.
As a snack with drinks
Of the 60, 10 said they eat it as a snack or as an accompaniment to alcohol.
Source: Rakuten customer reviews (viewed October 15, 2026)
What Reviewers Note
Sweet or strongly flavored
Of the 17 reviews rated 1★ or 2★ in total, 7 said they found it sweet or strongly flavored (4 of them posted within the last two years).
Small amount
Of the 17 reviews rated 1★ or 2★, 6 said they felt the amount was small (1 of them posted within the last two years).
How to check: the amount per bag and the number of bags are summarized in the “Amount” row of this article’s “Basic Information” section.
Hard, dry, or bones included
Of the 17 reviews rated 1★ or 2★, 5 mentioned hard parts, dryness, or bones being included (2 of them posted within the last two years).
Best-before date not found
Of the 2★ posts, 2 (1 of them posted within the last two years) said they could not find a best-before date on the product. The product page says the best-before date is written on the label attached to the packing material (a cardboard envelope).
How to check: where the best-before date is written is summarized in the “Best-Before Date” row of this article’s “Basic Information” section.
Source: Rakuten customer reviews (viewed October 15, 2026)
Who It Suits / Who Should Be Careful
Who It Suits
- Want to try, in small bags, room-temperature maguro kakuni that can be used as a side dish for rice or an onigiri filling
- Fine with delivery in simple packaging, for home use
- Want to choose a product with a best-before date of 180 days after manufacture (unopened)
Who Should Be Careful
- Want to give it as a gift (the page says it is not available as a gift)
- Have a soybean or wheat allergy (for any other items, ask the shop before buying)
- Want to check the best-before date on the product itself (the page says it is written on the packing material label)
- Wonder whether the sweet seasoning or the 70g-per-bag amount will suit you
- Receiving it in summer (it is dropped into the mailbox, and the page carries a note that it can get hot inside)
Prices, stock, shipping fees, and delivery dates are subject to change. This article’s information-as-of date is October 15, 2026. Please be sure to check the listing at the link before purchasing.
This article contains affiliate links (advertising). Editorial Policy
Summary
- A product for home use delivered in simple Nekopos packaging; the page states it is not available as a gift. Not suited to gifts
- Store at room temperature; the best-before date is 180 days after manufacture (unopened). The page says it is written on the label on the packing material (a cardboard envelope)
- The ingredient name field notes that soybeans and wheat are contained. If you have allergies, ask the shop before buying or check the label on the product you receive
This article organizes information published on sales sites and review sites. Product information such as amount, storage method, and ingredients may change. Please check the seller’s listing for the latest information.
Our approach to writing articles is described in our Editorial Policy.
Information as of: October 15, 2026 / Sources: Rakuten Ichiba “かつおのタタキとまぐろの大熊” product page, Rakuten customer reviews, Consumer Affairs Agency, Japan, “About Allergen Labeling”
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