Seasoned herring roe is called “kazunoko” in Japanese, but what’s actually inside can differ by the size of the roe grains and how it has been processed, so the product name alone can make it hard to tell “how many days you have to eat it” or “whether it works as a gift.” In this article, we organize publicly available product information about Echizen Kani Shokunin Kouragumi’s seasoned herring roe 500g (“Honchan” and “ikkyūhin” in the product name are names the seller has given this product; the grading criteria are not confirmed, so they do not indicate any superiority in quality) into five points: amount, storage method, ingredient labeling, gift suitability, and reviews.
What We Confirmed
- Approximate amount
- Storage method and shelf life
- Ingredient and allergen labeling
- Whether it’s suitable 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 | Commonly called “honchan,” a supposed “ikkyūhin” (top grade)! Seasoned herring roe 500g“Honchan” and “ikkyūhin” in the product name shown on the product page are names the seller has given this product; the grading criteria are not confirmed, so they do not indicate any superiority in quality. Source: Rakuten Ichiba product page (accessed September 23, 2026) |
|---|---|
| Name | Not confirmed (neither the item description nor the official site shows an entry for the “name” field required under the Food Labeling Act)Source: Rakuten Ichiba product page and Kouragumi official site (accessed September 23, 2026) |
| Amount | Seasoned herring roe 500g (a single size; no options for grade number or weight)Source: same as above |
| Storage method | Keep frozen at −18°C or belowSource: Product description and official site |
| Best-before date | When stored frozen at −18°C or below, it is described as best eaten within about 1 month. This is the only sentence stating a specific number of days after arrivalSource: Product description and official site |
| Country of origin | Herring roe: from the North Pacific / Canada, the U.S. (Alaska), or RussiaSource: Product description and official site (accessed September 23, 2026) |
| Place of processing | Not confirmed |
| Condition/How to eat (whether heating is needed) | It is described as ready to eat after thawing, with no heating neededSource: Product description and official site |
| Delivery | With frozen delivery, a delivery date can be specified from 4 days after ordering up to within 30 days. It is also described as supporting same-day “Asuraku” delivery (please check the listing at the time of ordering to see whether it’s available)Source: Product description |
| Manufacturer | Not confirmed (both the item description and the official site show only a “seller” label, with no distinction from a manufacturer or processor. The seller is Denshoku Co., Ltd. (株式会社伝食)) |
| Shop | Echizen Kani Shokunin Kouragumi (DENSHOKU) (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 ingredients are listed as herring roe (from the North Pacific / Canada, the U.S. (Alaska), or Russia), fermented seasoning, soy sauce, sugar, glucose-fructose syrup, dried bonito extract / seasoning (amino acids, etc.), sorbitol, pH adjuster, preservative (potassium sorbate), and sweetener (stevia)Source: Product description and official site (accessed September 23, 2026).
For allergen labeling, the product page states that the ingredients include wheat and soy in partSource: same as above.
If you have a wheat or soy allergy, please check the labeling above before purchasing, or check the food information label on the product again when it arrives.
Reference: Consumer Affairs Agency, Japan, “About Allergen Labeling” (accessed September 23, 2026)
Five Things to Check Before Buying
| What to check | For this product | Source |
|---|---|---|
| 1. Amount and servings | Seasoned herring roe 500g (a single size). How many servings this yields is not confirmed (not stated on the page) | Product description on the product page and official site |
| 2. Storage method and shelf life | Keep frozen at −18°C or below. Described as best eaten within about 1 month when frozen | Product description on the product page and official site |
| 3. Ingredient and allergen labeling | Ingredients are listed as herring roe, fermented seasoning, and more. Allergen labeling states the ingredients include wheat and soy in part | Product description on the product page and official site |
| 4. Whether it’s suitable as a gift | Noshi is offered (outer noshi, strip-style sticker). The type of inscription and gift-box-style packaging are not confirmed; message cards are not supported | Product page and shop FAQ |
| 5. Trends in reviews | Rakuten Ichiba’s rating is 4.34/5 (674 reviews, retrieved September 23, 2026). We could not identify an individual review-page URL, so we were unable to check individual posts this time, and trends in what’s praised or noted are not confirmed | Measured values via the Rakuten API relay (obtained September 23, 2026) |
Suitable as a Gift?
The product page states that various noshi (gift labels) are availableSource: Rakuten Ichiba product page (accessed September 23, 2026). The shop’s FAQ explains that, on request, a strip-style sticker noshi is attached (outer noshi; excluded for mail-delivery orders)Source: Shop FAQ (accessed September 23, 2026).
On the other hand, we found no individual listing of the types of noshi inscription available (such as for oseibo, ochugen, or uchiiwai), so this is not confirmed. The same FAQ states that the shop has moved to simple packaging and does not offer individual handling for gift wrapping or packaging, so gift-box-style packaging is also not confirmed. Message cards are stated as not supported in the same FAQ.
If you’re considering this as a gift, checking the following with the shop before purchase can help avoid misunderstandings.
- Whether you can choose the type of noshi inscription (not stated)
- Whether gift-box-style packaging is available (the FAQ states the shop has moved to simple packaging)
- Whether you can specify a date/time the recipient can receive it, since it arrives via frozen delivery
What Public Reviews Say
We checked the rating count and average score shown on the Rakuten Ichiba product page. Trends in individual review content are not confirmed (for the reasons in the table above). These figures reflect the time we viewed them and will change afterward.
| Site | Rating | Number of reviews | Date viewed |
|---|---|---|---|
| Rakuten customer reviews (“Minna no Review”) (product page) | 4.34 / 5 | 674 reviews | September 23, 2026 |
What Reviewers Praise
Not confirmed.
What Reviewers Note
Not confirmed.
Who It Suits / Who Should Be Careful
Who It Suits
- Want to eat seasoned herring roe as is
- Want to keep it frozen and eat it little by little
- Want to give it with noshi (outer noshi, strip-style sticker)
Who Should Be Careful
- Have a wheat or soy allergy (stated to be included in part)
- Want a gift with gift-box packaging, wrapping, or a message card (not supported, or not confirmed)
- Want to specify the type of noshi inscription when gifting (not confirmed)
- Want to read individual reviews before choosing (we were not able to confirm these this time)
Prices, stock, shipping fees, and delivery dates are subject to change. This article’s information-as-of date is September 23, 2026. Please be sure to check the listing at the link before purchasing.
The shop name and item number (220035) on Yahoo! Shopping match those on the Rakuten Ichiba product page, but whether the operating company (as shown in the Specified Commercial Transactions Act notice) is the same is not confirmed. On Amazon, we found listing candidates from the same brand, but we could not check the content of the product page itself, so whether it is the same product as this article’s is not confirmed.
This article contains affiliate links (advertising). Editorial Policy
Summary
- Seasoned herring roe 500g is a single size; how many servings it yields is not stated on the product page and is not confirmed
- Store frozen at −18°C or below. It is described as best eaten within about 1 month when frozen
- Allergen labeling states the ingredients include wheat and soy in part. Outer noshi is supported, but the type of inscription, gift-box packaging, and message cards are not confirmed or not supported
Related Pages
This article organizes information publicly available on each retailer’s site. Product details such as amount, storage method, and ingredients are subject to change. Please check the seller’s own listing for the latest information.
The rating figures are aggregate values from a third-party site with its source noted, and are not Ochinity’s own evaluation. Our approach to writing articles is described in our Editorial Policy.
Information as of: September 23, 2026 / Sources: Rakuten Ichiba “Echizen Kani Shokunin Kouragumi” product page, Kouragumi official site, shop FAQ, Rakuten API relay, Yahoo! Shopping shop page, Consumer Affairs Agency, Japan, “About Allergen Labeling”
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