Sanriku Kaihouzuke 350g (Nakamuraya) is a soy-sauce-marinated seafood dish made with mekabu (a type of wakame seaweed), ikura (salmon roe), and abalone. With products that arrive frozen, it can be hard to tell how long the best-before date lasts or whether the item works as a gift, which can make it tricky to decide. This article organizes the product information published on Rakuten Ichiba and the official site, along with review descriptions, into five points: amount, storage method, ingredient labeling, suitability as a gift, and reviews.
What We Confirmed
- Amount and roughly 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 | Nakamuraya Sanriku Kaihouzuke 350g |
|---|---|
| Name | Not confirmed |
| Amount | 350g, 1 pack. The product page does not state how many servings this makesSource: Rakuten Ichiba and official site product pages (viewed September 27, 2026) |
| Storage Method | Keep frozen (−18°C or below)Source: official site kaihouduke.jp (viewed September 27, 2026) |
| Best-Before Date | The stated shelf life differs by source. Rakuten Ichiba (G-Call) and Amazon’s product descriptions state “90 days frozen,” while the official site (kaihouduke.jp) states “180 days from the shipping date.” We cannot determine which is more current, so please check the listing on the mall you order from for the latest information before purchasing.Source: Rakuten Ichiba product page / Amazon product page / official site kaihouduke.jp (viewed September 27, 2026) |
| Country of Origin | Not confirmed |
| Place of Processing | Not confirmed |
| State / How to Eat (Whether Cooking Is Required) | The product page advises thawing it in the refrigerator and eating it as is.Source: official site kaihouduke.jp (viewed September 27, 2026) |
| Thawing Method | The official site gives refrigerator thawing with a guideline time (about 9 hours).Source: official site kaihouduke.jp (viewed September 27, 2026) |
| Shipping | Cool frozen deliverySource: Rakuten Ichiba product page (viewed September 27, 2026) |
| Manufacturer | Nakamuraya Co., Ltd. (有限会社中村家), Kamaishi, Iwate PrefectureSource: official site kaihouduke.jp (viewed September 27, 2026) |
| Shop | G-Call 食通の定番 お取り寄せ (Rakuten Ichiba). The manufacturer is Nakamuraya Co., Ltd. (三陸海鮮料理 釜石中村家) |
Prices are not listed here because they change. Please check the current price and stock availability at the link above.
Ingredients and Allergen Labeling
According to the official site, the main ingredients are mekabu, ikura (salmon roe), and abalone (Amazon’s product description also lists capelin roe (カラフトシシャモ卵) as an additional ingredient). The allergen labeling lists wheat, soy, abalone, and salmon roe (the official site and Amazon listings match). We did not find an ingredient list or allergen labeling itself in the Rakuten Ichiba product description or LP images.
Wheat is one of the specified raw materials that must be labeled under Japan’s Food Labeling Act, and soy, abalone, and salmon roe are among the items recommended for labeling as materials equivalent to specified raw materials. If you have an allergy to any of the above, please contact the shop or manufacturer before purchasing, or check the food information label on the product once it arrives.
Reference: Consumer Affairs Agency, Japan, “About Allergen Labeling” (viewed September 27, 2026)
Five Things to Check Before Buying
| What to Check | For This Product | Basis |
|---|---|---|
| 1. Amount and servings | 350g, 1 pack. No servings count is given | Rakuten Ichiba and official site product pages (viewed September 27, 2026) |
| 2. Storage method and shelf life | Keep frozen (−18°C or below). The stated best-before date differs — “90 days frozen” (Rakuten, Amazon) vs. “180 days from the shipping date” (official site) — so we recommend checking the mall’s product page before buying | Rakuten Ichiba product page, Amazon product description, official site kaihouduke.jp (viewed September 27, 2026) |
| 3. Ingredients and allergen labeling | Main ingredients are mekabu, ikura, and abalone. Allergen items are wheat, soy, abalone, and salmon roe (official site and Amazon match). Not listed on the Rakuten product page | Official site and Amazon product pages (viewed September 27, 2026) |
| 4. Suitable as a gift | Noshi gift wrapping and name printing are supported. However, this Rakuten Ichiba shop does not offer extra gift wrapping, double wrapping, or message cards | Rakuten Ichiba product page (viewed September 27, 2026) |
| 5. Review trends | Rakuten Ichiba’s rating is 4.49 out of 5 (83 reviews). We read the first 30 reviews shown in the standard sort order (posted between December 2020 and July 2026, with the most recent posted in July 2026); this trend may not reflect the product’s current state. Among the 30 we read, many comments mention the product being well received as a gift for Mother’s Day, ochugen, and oseibo, with almost no clear complaints. The rating figure is as of the time we viewed it and may change afterward | Rakuten customer reviews (viewed September 27, 2026; 30 reviews checked) |
Suitable as a Gift?
The Rakuten Ichiba product page supports noshi gift wrapping and name printing. It lists example uses for the inscription, such as for personal use, ochugen, oseibo, Mother’s Day, and Father’s Day, but we could not confirm the specific inscription wording. This Rakuten Ichiba shop also does not offer extra gift wrapping, double wrapping, or message cards. According to the official site (kaihouduke.jp), the product itself arrives in a gift box (20.5 × 16 × 5.8 cm). If you are considering it as a gift, checking with the shop beforehand about any additional wrapping needed can help avoid misunderstandings.
- Whether noshi gift wrapping and name printing are supported (this product supports it)
- Whether extra gift wrapping, double wrapping, or message cards are needed (this Rakuten Ichiba shop does not offer them)
- Because it arrives by frozen delivery, whether you can specify a delivery date and time the recipient can receive it
Reviews often mention the product being given as a gift for Mother’s Day, Father’s Day, ochugen, and oseibo, and being well received (Source: Rakuten customer reviews, viewed September 27, 2026. We read 30 reviews, and this trend may not reflect the product’s current state).
What Public Reviews Say
Below is a summary of the rating shown on Rakuten Ichiba and the content of the 30 posts we read in the standard sort order. This trend may not reflect the product’s current state.
| Site | Rating | Reviews | Viewed |
|---|---|---|---|
| Rakuten customer reviews (product page) | 4.49 / 5 | 83 | September 27, 2026 |
What Reviewers Praise
Many posts mention the product being given as a gift for Mother’s Day, Father’s Day, ochugen, and oseibo, and being well received. Some reviews rate it highly as a topping for rice, mention repeat purchases, or say they gave it as a gift after seeing it on TV.
Source: Rakuten customer reviews (viewed September 27, 2026; 30 reviews checked)
What Reviewers Note
Among the 30 reviews we read this time, we found almost no reviews with a clear complaint (a rating of 1–2). One comment mentioned that expectations had been raised too high after seeing the product on social media, though the overall rating was still high.
Source: Rakuten customer reviews (viewed September 27, 2026)
Who It Suits / Who Should Be Careful
Who It Suits
- Looking for something to eat with rice or as a drink snack
- Looking for a gift for Mother’s Day, Father’s Day, ochugen, or oseibo
- Want to try one pack (350g) of Nakamuraya’s Sanriku Kaihouzuke
- Want something easy to eat that just needs thawing
Who Should Be Careful
- Have an allergy to wheat, soy, abalone, or salmon roe (please contact the shop)
- Want to check the best-before date precisely (sources differ, so check before buying)
- Want extra gift wrapping, double wrapping, or a message card (this Rakuten Ichiba shop does not offer them)
- Need to arrange a receiving date and time, since it arrives frozen
Prices, stock, shipping fees, and delivery dates are subject to change. This article’s information-as-of date is September 27, 2026. Please be sure to check the listing at the link before purchasing.
This article contains affiliate links (advertising). Editorial Policy
Summary
- The amount is 350g, 1 pack. No servings count is given, so consider it an amount for use as a rice topping or drink snack
- Store frozen (−18°C or below). The best-before date differs by source — “90 days frozen” (Rakuten, Amazon) vs. “180 days from the shipping date” (official site) — so check the mall’s product page before buying
- Noshi gift wrapping and name printing are supported, but this Rakuten Ichiba shop does not offer extra wrapping or message cards. If using it as a gift, check beforehand
Related Pages
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: September 27, 2026 / Sources: Rakuten Ichiba “G-Call 食通の定番 お取り寄せ” product page, official site kaihouduke.jp, Amazon product page, Rakuten customer reviews, Consumer Affairs Agency, Japan, “About Allergen Labeling”
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