The “selectable kaisendon set, 10 servings” (frozen) sold by 請関水産 on Rakuten Ichiba can be hard to judge from the product page alone: how much is in one pack, which fish arrive, and how long it keeps. This article organizes the publicly available product information and review-site comments on this product into five points: amount, shelf life, ingredient labeling, suitability as a gift, and public reviews. Kaisendon means a seafood rice bowl.
*The Amazon link goes to the same store’s item (seller: うまい刺身専門店 請関水産) in different specifications (on Amazon, a fixed set of 5 kinds x 2 packs; on Rakuten Ichiba, 3 fixed kinds plus 2 kinds you choose; the total is the same 10 packs; viewed October 13, 2026). The amount and contents in this article are based on the Rakuten Ichiba item. Please check the details on the Amazon product page before purchasing.
What We Confirmed
- Amount, and a rough guide to how many people it serves
- 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 | Selectable Kaisendon Set, 10 Servings (frozen). A format where you choose from sea bream, tuna, yellowtail, salmon and amberjack (or bonito)Source: Rakuten Ichiba product page (accessed October 13, 2026) |
|---|---|
| Designation | Not confirmed (a food-label designation was not found on the product page) |
| Amount | 10 packs of marinated bowl topping (zuke-don) and 10 small bags of shredded nori seaweed. One pack is described as one rice-bowl serving (10 packs are described as 10 bowls). A total weight of 768 g is shown, but whether it includes the nori is Not confirmed. The weight in grams per pack is also Not confirmedSource: Rakuten Ichiba product page (product attributes and description images) |
| What Changes Depending on Your Choice | Six packs are fixed: 2 packs of yellowtail, 2 packs of red sea bream, and 2 packs of either amberjack or seared bonito. The remaining 4 packs are 2 packs of one type you choose and 2 packs of another type you choose, from five types: yellowtail, sea bream, amberjack (or bonito), tuna and salmon (chosen from a drop-down menu when ordering). The page states that the amberjack may be changed to bonito depending on the catchSource: Rakuten Ichiba product page (product description and description images) |
| Storage Method | Frozen. Individually packed in single-serving portionsSource: product description on the Rakuten Ichiba product page |
| Best-Before Date | Not confirmed (not found on the product page) |
| Country of Origin | The product attributes show the country of origin / manufacture as Japan. The origin of the raw material for each fish type was not found on the product page and is Not confirmedSource: Rakuten Ichiba product page (product attributes) |
| Processing Location | Not confirmed |
| Condition / How to Eat (Cooking Required?) | A bowl topping to thaw and put on white rice; the page says the fish is marinated in a special sauce seasoned for each type of fish. We did not find the seller’s guidance on whether cooking is required, or whether it can be eaten raw, on the product page, so this is Not confirmedSource: Rakuten Ichiba product page (product description and description images) |
| Thawing Method | The page says it can be thawed under running water in about 5 minutes (put the pack in a container as it is and run water over it; it varies with the season), or left to thaw naturally in the refrigerator for about 5 to 6 hours. A booklet on how to eat it is included. How long it keeps after thawing is Not confirmedSource: Rakuten Ichiba product page (description images and product description) |
| Shipping | Storage is stated as frozen, but the carrier and the name of the temperature zone (such as frozen delivery) were not found and are Not confirmed. The order screen says: specify a delivery date and time when ordering; if the package is returned because of a long absence or similar, it will be discarded as a perishable item and cannot be returned, re-sent or refunded; and the delivery date is confirmed in an email after purchase. If you order several sets for home use, they arrive together in one boxSource: Rakuten Ichiba product page |
| Manufacturer | Not confirmed |
| Shop | 宮崎 うまい刺身専門店 請関水産 (Rakuten Ichiba)Source: Rakuten Ichiba product page |
Prices are not listed here because they change. Please check the current price and stock availability at the link above.
Ingredients and Allergen Labeling
Within what we could check, the product description and description images on the product page do not show an ingredient list, additives, or allergen labeling. This item is Not confirmed. The page says the fish is marinated in a special sauce seasoned for each type of fish, but the ingredients of the sauce are not listed.
If you have an allergy or want to check the ingredients, ask the shop before buying, or be sure to check the food information label on the product when it arrives.
Reference: Consumer Affairs Agency, Japan, “About Allergen Labeling” (accessed October 13, 2026)
Five Things to Check Before Buying
| Item to Check | For This Product | Basis |
|---|---|---|
| 1. Amount and number of servings | 10 packs (one pack is described as one rice-bowl serving) and 10 bags of shredded nori. No number of people is stated. The weight in grams per pack is Not confirmed | Product description and description images on the product page. No number of people is stated |
| 2. Storage method and shelf life | Frozen. Thawing is described as about 5 minutes under running water, or about 5 to 6 hours in the refrigerator. The best-before date and the shelf life after thawing are Not confirmed | Product description and description images on the product page |
| 3. Ingredients and allergen labeling | Not confirmed (not on the page) | We checked the Rakuten Ichiba product page |
| 4. Suitability as a gift | Noshi (a Japanese gift-wrapping label) is available at no charge (plain red-and-white, in a bow knot or a tied-fast knot). A message card is free, and furoshiki (a traditional Japanese wrapping cloth) wrapping is available for a fee. A gift box is Not confirmed | Product description and description images on the product page |
| 5. Review trends | The Rakuten Ichiba rating is 4.61 / 5 (583 reviews). We read the first 60 reviews in Rakuten customer reviews’ default order (posted October 2024 to August 2026; latest August 2026), all 8 reviews rated 2★ (posted September 2022 to March 2025), and 18 of the 19 rated 3★ (posted August 2022 to August 2026), 86 in total (there are no 1★ reviews). Many comments mention how easy it is to eat just by thawing, the taste, and recipients being pleased with it as a gift, while some say one pack is a small amount or that the seasoning is strong. These trends may not reflect the product’s current condition. A breakdown by point is in the “What Public Reviews Say” section | Rakuten customer reviews (accessed October 13, 2026) |
Suitable as a Gift?
The product page has information on noshi, message cards and furoshiki wrapping. What we could confirm is below (source: Rakuten Ichiba product page, accessed October 13, 2026). Conditions such as free or paid service and the amounts may change.
- Noshi: described as available at no charge. Plain red-and-white noshi in a bow knot or a tied-fast knot are offered, and the page lists more than 20 inscriptions, including ochugen (mid-year gift), oseibo (year-end gift), celebration, return gift, thanks, Respect for the Aged Day, Father’s Day and Mother’s Day. A description image also shows how to choose them by selecting “change noshi” during checkout
- Message card: free. The page says you can choose from 3 designs (leaf, cherry blossom, yellow flower) and 11 messages
- Furoshiki wrapping: paid (350 yen). Colors and patterns are left to the shop depending on the season and cannot be specified
- The page says that nothing showing the amount, such as an itemized statement, is enclosed
- We did not find any mention of a gift box or simple gift box, so this could not be confirmed
Because it arrives frozen, it is safer to check when the recipient can receive it and specify a delivery date and time. The page says that if the package is returned, it is discarded and cannot be returned, re-sent or refunded. Among the reviews we read, one 2★ review (December 2024) said that when a noshi and a card were added, the card was simply lying on top when the box was opened, which did not make for a nice presentation (source: Rakuten customer reviews, accessed October 13, 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 | Number of Reviews | Date Accessed |
|---|---|---|---|
| Rakuten customer reviews (product page) | 4.61 / 5 | 583 | October 13, 2026 |
Rating breakdown: 5★ 391 / 4★ 165 / 3★ 19 / 2★ 8 / 1★ 0 (as shown on Rakuten Ichiba, viewed October 13, 2026)
What we read: the first 60 reviews in Rakuten’s default order (posted October 2024 to August 2026; latest August 2026), plus all 8 reviews rated 2★ (posted September 2022 to March 2025) and 18 of the 19 rated 3★ (posted August 2022 to August 2026), 86 in total. The 60 reviews in the default order were all rated 4★ or 5★. These are trends within what we read and may not reflect the product’s current condition.
What Reviewers Praise
Satisfying taste
Of the 60 reviews in the default order, 45 said it was delicious or tasted good. 5 mentioned freshness, and 1 said there was no fishy smell. 14 mentioned repeat purchases or buying more than once.
Easy to eat just by thawing
Of the 60 reviews, 17 said it can be eaten just by thawing it and cooking rice, with no cooking needed, so it is easy. Some also said the small packs thaw quickly, and that in summer they thaw in a short time in water. 4 mentioned that it is handy to keep in the freezer.
Appreciated as a gift
Of the 60 reviews, 16 said they sent it to family or relatives for occasions such as Father’s Day, Mother’s Day, Respect for the Aged Day, oseibo (year-end gift) or return gifts, and that it was appreciated. Some also said they bought it for home use, liked it, and then sent it as a gift.
Choosing fish types and comparing them
Of the 60 reviews, 9 said they liked being able to compare five types, that having types to choose from was nice, or that they put two types on one bowl.
Source: Rakuten customer reviews (accessed October 13, 2026). One review may mention more than one point
What Reviewers Note
One pack is a small amount
Of the 86 reviews we read, 12 said one pack is not enough for a single bowl, that they use two packs, or that it was less than expected (3 of the 60 in the default order, 2 of the 8 rated 2★, and 7 of the 18 rated 3★). The reviews from the last two years are the 3 in the default order. On the other hand, one review said the small pack was just right for an elderly parent.
How to check: that one pack is described as one rice-bowl serving is noted in the “Amount” row of “Basic Information” in this article. The weight in grams per pack is Not confirmed.
Strong or salty seasoning
Of the 26 reviews rated 2★ and 3★ combined, 7 said the seasoning was strong or salty (the only review from the last two years is 1 rated 2★, from March 2025). 1 review rated 2★ said it was weak in flavor. None of the 60 reviews in the default order mentioned this point.
Sinew, bones, and a slight fishy smell
Of the 26 reviews rated 2★ and 3★ combined, 9 said that fish such as tuna had a lot of sinew, that bones were left in, or that it smelled slightly fishy (the only review from the last two years is 1 rated 3★, from August 2026, which mentions bones). None of the 60 reviews in the default order mentioned these points.
Source: Rakuten customer reviews (accessed October 13, 2026). One review may mention more than one point
Who It Suits / Who Should Be Careful
Who It Suits
- People who want to keep marinated bowl toppings in the freezer that can be eaten just by thawing and putting on rice
- People who want individually packed single-serving portions (one rice-bowl serving each)
- People who want to choose the types of fish from yellowtail, sea bream, amberjack (or bonito), tuna and salmon
- People who want to send it as a gift with a noshi or a message card (described as free)
Who Should Be Careful
- People who want a full bowl in one meal (the weight in grams per pack is not confirmed, and some people use two packs)
- People who want to know the best-before date or the shelf life after thawing before buying (not confirmed on the product page)
- People who want to check the ingredients and allergen labeling before buying (not confirmed)
- People who want to be sure of receiving amberjack (it may be changed to bonito depending on the catch)
- People who want to check guidance on whether it can be eaten raw (not confirmed on the product page)
- People who have not settled on when they can receive it (specify a delivery date and time when ordering; a returned package cannot be returned, re-sent or refunded, according to the page)
Prices, stock, shipping fees, and delivery dates are subject to change. This article’s information-as-of date is October 13, 2026. Please be sure to check the listing at the link before purchasing.
This article contains affiliate links (advertising). Editorial Policy
*The Amazon link goes to the same store’s item (seller: うまい刺身専門店 請関水産) in different specifications (on Amazon, a fixed set of 5 kinds x 2 packs; on Rakuten Ichiba, 3 fixed kinds plus 2 kinds you choose; the total is the same 10 packs; viewed October 13, 2026). The amount and contents in this article are based on the Rakuten Ichiba item. Please check the details on the Amazon product page before purchasing.
Summary
- One pack is described as one rice-bowl serving, and 10 packs and 10 bags of shredded nori arrive. The weight in grams per pack is not confirmed, and some reviews say the amount felt small
- Storage is frozen. Thawing is described as about 5 minutes under running water or about 5 to 6 hours in the refrigerator. The best-before date, the shelf life after thawing, the ingredients and the allergen labeling could not be confirmed on the product page
- Noshi and message cards are described as free, and furoshiki wrapping as paid. The contents vary by 3 fixed types plus 2 types chosen from 5, and the amberjack may be changed to bonito
Related Pages
This article summarizes information publicly available on retail sites and review sites. Product details such as amount, storage method, and ingredients are subject to change. Please check the seller’s listing for the most current 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 13, 2026 / Sources: Rakuten Ichiba “宮崎 うまい刺身専門店 請関水産” product page, Rakuten customer reviews, Consumer Affairs Agency “About Allergen Labeling”
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