With wakeari (imperfect, sold at a discount) karashi mentaiko (chili-seasoned pollock roe), the 1kg quantity and the kireko (pieces that have broken apart) and bara-ko (loose roe eggs) form make it easy to choose without knowing how many servings it is, by when it should be eaten, or whether coloring is used. Based on the product pages on Rakuten Ichiba and Yahoo! Shopping and the Rakuten reviews, this article organizes 魚耕’s Wakeari Karashi Mentaiko 1kg into five points: quantity, shelf life, ingredients, suitability as a gift, and reviews. The number of servings, the manufacturer, the place of processing, guidance on whether it can be eaten raw or needs cooking, and the thawing method could not be confirmed from the product pages, so they are marked as not confirmed.
What We Confirmed
- Quantity (number of servings not confirmed)
- 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 | 魚耕 Wakeari Karashi Mentaiko 1kg (Kireko, Bara-ko). The product name shown on the Rakuten Ichiba product page is longer than this and also includes promotional wording about taste, texture, and gifting. This article lists the part that corresponds to the specification |
|---|---|
| Name | Karashi mentaiko (kireko / bara-ko)Source: product description on the Rakuten Ichiba product page (viewed October 6, 2026) |
| Amount | 1kg. Number of servings is not confirmed (not stated on the product page)Source: same as above |
| What Changes by Selection | There is no size selection field; only 1kg is offered. We could not find a field for choosing the ratio or size of kireko and bara-ko, or any statement guaranteeing them. Packing is chosen from “bundled packing (simple packaging)” or “individual packing”Source: Rakuten Ichiba product page (viewed October 6, 2026) |
| Storage Method | Frozen at −18°C or below; refrigerated at 10°C or belowSource: product description on the Rakuten Ichiba product page |
| Best-Before Date | Stated as 90 days recommended when frozen and 4 days after thawing. The seller notes that, because the temperature in a home freezer tends to rise from opening and closing, you should eat it earlier than the date stated on the productSource: same as above |
| Raw Material Origin | Walleye pollock roe: stated as from Russia or the U.S.Source: same as above |
| Place of Processing | Not confirmed |
| State / How to Eat (Whether Cooking Is Required) | We could not find the seller’s guidance on whether it can be eaten raw or needs cooking. Not confirmedSource: Rakuten Ichiba and Yahoo! Shopping product pages |
| Thawing Method | We could not find a thawing method in the product description. The product page contains images with guidance titled “thawing method” and “how to eat,” but we have not been able to confirm what they say. Not confirmed |
| Reason for “Wakeari” | The Rakuten Ichiba product page does not state the reason for “wakeari,” so it is not confirmed. The same shop’s Yahoo! Shopping product page has a title explaining that the items are non-standard or simply have a cracked appearanceSource: Yahoo! Shopping “魚耕ヤフー店” product page (viewed October 6, 2026) |
| Shipping | Frozen delivery. The page states that it cannot be shipped together with chilled items or items sent directly from the producerSource: product description on the Rakuten Ichiba product page |
| Manufacturer | Not confirmed |
| Shop | 魚耕 楽天市場店 (Rakuten Ichiba) / 魚耕ヤフー店 (Yahoo! Shopping). The seller is 株式会社魚耕ホールディングス (Suginami Ward, Tokyo)Source: product description on the 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
The ingredients field in the product description on Rakuten Ichiba (viewed October 6, 2026) states the following.
Walleye pollock roe (from Russia or the U.S.), salt, mirin, sake, chili pepper, sorbitol, seasoning (amino acids, etc.), antioxidant (vitamin C), niacin, enzyme, colorings (Red No. 102, Yellow No. 5, Red No. 3), color preservative (sodium nitrite), (part of the ingredients contain wheat and soybeans)
The allergens listed are the wheat and soybeans in this ingredients field. We could not find a separate field showing allergies or specified ingredients on the Rakuten Ichiba product page. The ingredients on the Yahoo! Shopping “魚耕ヤフー店” product page are stated the same way and also say it contains wheat and soybeans, so there is no discrepancy regarding allergens.
The ingredients field lists colorings and a color preservative. It does not say that it is uncolored or additive-free. The nutrition facts (per 100g) are stated as energy 109kcal, protein 18.4g, fat 1.3g, carbohydrates 6g, and salt equivalent 4.8g (Rakuten Ichiba product description). If you have allergies, please check the shop’s listing before purchasing, and the food information label on the product when it arrives.
Reference: Consumer Affairs Agency, Japan, “About Allergen Labeling” (accessed October 6, 2026)
Five Things to Check Before Buying
| What to Check | For This Product | Basis |
|---|---|---|
| 1. Amount and Number of Servings | 1kg. Number of servings is not confirmed. There is no size selection field, and the ratio or size of kireko and bara-ko cannot be chosen | Quantity shown on the product page. No statement of the number of people |
| 2. Storage Method and Shelf Life | Frozen at −18°C or below; refrigerated at 10°C or below. Stated as 90 days recommended when frozen and 4 days after thawing | Product description on the Rakuten Ichiba product page |
| 3. Ingredients and Allergen Labeling | Part of the ingredients are stated to contain wheat and soybeans. Colorings (Red No. 102, Yellow No. 5, Red No. 3) and a color preservative (sodium nitrite) are listed | Ingredients field in the Rakuten Ichiba product description (the Yahoo! Shopping product page states the same) |
| 4. Suitable as a Gift | Noshi is shown as supported. The types of inscription, gift box, and message card could not be confirmed (not confirmed) | Display and guidance images on the Rakuten Ichiba product page |
| 5. Review Trends | Rakuten Ichiba’s rating is 4.53 out of 5 (1,429 reviews). The trends by viewpoint are in the “What Public Reviews Say” section (we read 74 reviews in total, mostly older posts. This is a trend within what we read and does not necessarily represent the product’s current state) | Rakuten customer reviews (viewed October 6, 2026) |
Suitable as a Gift?
The product name includes the words “gift” and “formal gift,” but the product name alone cannot tell us whether it suits gift-giving, so we checked what the product page states (viewed October 6, 2026).
- Noshi: the Rakuten Ichiba product page shows “noshi supported.” The types of inscription you can choose (year-end gift, midsummer gift, return gift, etc.) are not stated on the product page and are not confirmed
- Packaging: there are two packing choices, “bundled packing (simple packaging)” and “individual packing.” A guidance image for buying 2 or more items says that, with simple packaging, the box is sized to fit the products and may differ from the sample photo, so it advises choosing individual packing when dividing the items for use as gifts and the like
- Gift box, gift wrapping, message card, name printing: we could not confirm these
- How it arrives: it arrives by frozen delivery and cannot be shipped together with chilled items or items sent directly from the producer. For specified delivery dates, there is a note that payments other than by credit card are ordered after payment is confirmed. Please also consider the recipient’s date and time of receipt and the freezer space needed for 1kg
What Public Reviews Say
We organized the product reviews on Rakuten Ichiba by viewpoint. The rating figures are as of the time we viewed them and may change afterward.
| Site | Rating | Reviews | Viewed |
|---|---|---|---|
| Rakuten customer reviews (product page) | 4.53 / 5 | 1,429 | October 6, 2026 |
Rating breakdown: 5 stars 897 / 4 stars 424 / 3 stars 87 / 2 stars 12 / 1 star 9 (as shown on Rakuten Ichiba; viewed October 6, 2026)
Range read: 53 reviews in the standard sort order (Rakuten’s default order; posts from November 2014 to April 2026, with the latest from April 2026. 5 posts are from October 2024 or later, and the rest are from 2014 to 2021), 9 reviews filtered to 1 star (December 2014 to March 2020), and 12 reviews filtered to 2 stars (November 2014 to November 2016), 74 in total. All 21 of the 1-star and 2-star reviews were posted in March 2020 or earlier, and there are none from the past two years. The counts are approximations tallied by viewpoint and vary depending on how they are counted. This is a trend within the range we read and does not necessarily represent the product’s current state.
What Reviewers Praise
Even kireko pieces are fairly large and easy to separate
About 20 of the 53 reviews in the standard sort order said that the pieces were fairly large even though they were labeled kireko, or that the flesh separated easily and was easy to use even while frozen. Some reviews said it was all kireko with no bara-ko, so the impression of the contents differs from post to post.
Mild spiciness and an easy-to-eat taste
About 25 of the 53 reviews in the standard sort order said the spiciness was mild and the taste had depth and was easy to eat. How spicy it feels differs from writer to writer.
Large quantity with a wide range of uses
About 20 reviews said the large quantity could be used in rice balls, pasta, lunch boxes, and so on, or that they divided it into portions and froze it.
Gifts for family and acquaintances
9 reviews said it was given as a gift to family or acquaintances and was appreciated (2 of them posted in October 2024 or later).
Source: Rakuten customer reviews (viewed October 6, 2026)
What Reviewers Note
Strength of the coloring
About 8 of the 74 reviews (the 53 in the standard sort order plus the 21 one- and two-star reviews) said the color was strong or looked like a red different from the red of chili pepper (3 of them 1- or 2-star). These posts are from 2014 to 2016, and there are none from the past two years.
How to check: the coloring labeling is summarized in the “Ingredients and Allergen Labeling” section of this article.
Spiciness, saltiness, and the texture of the grains
About 5 of the 21 one- and two-star reviews said it was not spicy enough and was like tarako (salted cod roe) or that it tasted salty, and 3 said the plump, springy feel of the grains was weak (a few reviews in the standard sort order also mention spiciness or saltiness). These posts are from 2014 to March 2020. How taste and texture are perceived differs from writer to writer.
Frozen condition on arrival
3 of the 12 two-star reviews (all from 2015) mentioned a lot of frost, items frozen stuck together and hard to take out, or a lot of liquid after thawing.
How to check: the storage method and shelf-life labeling is summarized in the “Storage Method” and “Best-Before Date” rows of “Basic Information” in this article.
Source: Rakuten customer reviews (viewed October 6, 2026)
Who It Suits / Who Should Be Careful
Who It Suits
- Want to use a large quantity mixed into dishes such as rice balls and pasta
- Fine with the shape and size of the kireko and bara-ko changing from purchase to purchase
- Can divide it into portions and store it in the freezer
- Have freezer space for 1kg
Who Should Be Careful
- Have a wheat or soybean allergy (stated to be contained in part of the ingredients)
- Are looking for something uncolored or additive-free (colorings and a color preservative are listed)
- Want guidance on whether it can be eaten raw, or a thawing method (we could not find them)
- Want to rely on detailed gift support such as noshi inscriptions or a gift box (we could not confirm them)
Prices, stock, shipping fees, and delivery dates are subject to change. This article’s information-as-of date is October 6, 2026. Please be sure to check the listing at the link before purchasing.
This article contains affiliate links (advertising). Editorial Policy
Summary
- A 1kg frozen wakeari item labeled kireko and bara-ko. The shape and size cannot be chosen, and the number of servings is not confirmed
- According to the product page, the best-before date is 90 days recommended when frozen and 4 days after thawing. Part of the ingredients contain wheat and soybeans, and colorings and a color preservative are also listed
- Noshi is shown as supported, but the types of inscription could not be confirmed. Guidance on whether it can be eaten raw and the thawing method have not been confirmed either
Related Pages
This article organizes information published on various retail sites 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 6, 2026 / Sources: Rakuten Ichiba “魚耕 楽天市場店” product page, Yahoo! Shopping “魚耕ヤフー店” product page, Rakuten customer reviews, Consumer Affairs Agency, Japan, “About Allergen Labeling”
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