King crab can be confusing to shop for: the “cluster” unit used to count legs, whether it’s boiled or raw, and how the amount is measured all raise questions worth checking before you order. This article organizes the information published on the product page for the “King Crab, Extra-Thick 5L, 1kg x 2 Clusters Set” sold by Maguro Nara Tsukiji no Osama (まぐろなら築地の王様) — amount, storage, ingredients, gift options, and reviews.
What We Confirmed
- Amount and serving size guide
- Storage and shelf life
- Ingredients and allergen labeling
- Whether it’s suitable as a gift
- Trends in publicly available reviews
Basic Information
| Product name | King Crab, Extra-Thick 5L Size, 1kg × 2 Clusters Set |
|---|---|
| Size grade | “5L size” and “extra-thick” are size names/labels the seller has given this product; they don’t indicate ranking or superior qualitySource: product page listing (viewed September 13, 2026) |
| Amount | Approx. 1kg frozen total weight per cluster × 2 clusters (approx. 2kg total)Source: product description on the product page (viewed September 13, 2026) |
| State | Boiled and frozen (cooked before freezing)Source: product name and product page listing |
| Storage | Keep frozen at -18°C or below. Re-freezing is advised againstSource: product information section of the product page |
| Best-before date | 30 days frozen from the shipping dateSource: product information section of the product page |
| Country of origin | Norway and Russia. “Tsukiji” in the shop’s name and “Toyosu Market” in the product name on the product page both refer to procurement and wholesale locations, not the origin of the raw materialSource: product information section of the product page (viewed September 13, 2026) |
| Processing location | Not confirmed |
| Delivery | Not confirmed |
| Shop | Maguro Nara Tsukiji no Osama (まぐろなら築地の王様) (Rakuten Ichiba) |
Prices change frequently and are not listed here. Please check the link above for the latest price and availability.
Ingredients and Allergen Labeling
The product page lists only “king crab” as the ingredient, and we could not confirm any listing of additives. The country of origin is Norway and Russia. We could not find the food information label itself (covering the mandatory specified allergens) on the product page, so this point is Not confirmed.
Crab is one of the ingredients that must be declared under Japan’s Food Labeling Act. Because this product is king crab itself, anyone with a shellfish allergy cannot eat it. If you want to check the additives used in processing, ask the shop before buying or check the food information label on the product when it arrives.
Reference: Consumer Affairs Agency, “About Allergen Labeling” (viewed September 13, 2026)
Five Things to Check Before Buying
| What to check | For this product | Source |
|---|---|---|
| 1. Amount and servings | Approx. 1kg frozen total weight per cluster × 2 clusters (approx. 2kg total). The product page states that one cluster is about two servings, but there is no stated serving guide for both clusters combined | Product description on the product page |
| 2. Storage and shelf life | Keep frozen at -18°C or below. About 30 days frozen from the shipping date. Re-freezing is advised against | Product information section of the product page |
| 3. Ingredients and allergen labeling | Only king crab is listed as the ingredient. The food information label itself is Not confirmed | Product information section of the product page |
| 4. Suitable as a gift? | The page indicates noshi (gift wrapping label) is available. However, the specific inscription wording and whether a gift box is included are not confirmed (only shrink-wrap packaging was confirmed) | “Gift” section of the product page |
| 5. Review trends | Rakuten customer reviews rate this 4.30 out of 5 (602 reviews). We read only the reviews shown on the product page; sort order and other details are not confirmed. Comments mostly praise the volume and taste | Rakuten customer reviews (viewed September 13, 2026) |
Suitable as a Gift?
The “Gift” section of the product page states, “We can attach noshi for mid-year gifts, year-end gifts, Mother’s Day gifts, Father’s Day gifts, and more,” so noshi itself is offered (Source: product page, viewed September 13, 2026). However, this only lists the occasions it’s used for — it does not spell out the specific inscription wording (e.g., “For Ochugen”), so that point is Not confirmed.
On packaging, the only statement we found was, “Delivered in shrink-wrap packaging (each cluster wrapped individually)”; we found no mention of a gift box or simple gift box. Whether a gift box is included is Not confirmed. There was also no mention of message card support, which is likewise Not confirmed. We did confirm support for “social gift” sending, which lets you send a gift without knowing the recipient’s address.
- Noshi is offered; check the specific inscription wording with the shop at the time of purchase
- Whether a gift box or simple gift box is included is not confirmed (only shrink-wrap packaging was confirmed)
- Message card support is not confirmed
What Public Reviews Say
Below is a summary of the ratings and comments published on Rakuten. Rating figures are current as of the viewing date and change over time. We read only the handful of reviews displayed on the product page; the name of the sort order used, the number of reviews we read, the range of posting dates, and the date of the most recent post are all Not confirmed. The trends below therefore may not reflect the product’s current condition.
| Site | Rating | Count | Viewed on |
|---|---|---|---|
| Rakuten customer reviews (product page) | 4.30 / 5 | 602 | September 13, 2026 |
What Reviewers Praise
Among the reviews shown on the product page, most of the comments we read focused on the volume of the legs, how satisfying they were to eat, and the good taste and texture.
Source: Rakuten customer reviews (viewed September 13, 2026)
What Reviewers Note
Among the reviews we could view, one comment mentioned the crab tasted a little on the salty side. Please note this reflects only the reviews we could read, not all 602.
Source: Rakuten customer reviews (viewed September 13, 2026)
Who It Suits / Who Should Be Careful
Who It Suits
- Want to cook and plate right away from an already-boiled state
- Want to enjoy the volume of extra-thick legs
- Want to send noshi-attached gifts for mid-year or year-end gift-giving
Who Should Be Careful
- Anyone with a shellfish allergy (this product is king crab itself)
- Anyone who cares about a gift-box appearance (only shrink-wrap packaging was confirmed)
- Anyone who wants to confirm the specific inscription wording in advance (not confirmed)
Price, stock, shipping fees, and delivery dates change. This article’s information is current as of September 13, 2026. Please check the listing before you buy.
This article contains affiliate links (advertising). Editorial Policy
Summary
- 1kg × 2 clusters (approx. 2kg total), boiled and frozen. The raw material comes from Norway and Russia; “Tsukiji” in the shop’s name and “Toyosu” in the product name on the product page are procurement locations, not the origin
- Keep frozen at -18°C or below, about 30 days frozen. Re-freezing is advised against
- Noshi is offered, but the inscription wording, gift box, and message card support are not confirmed. If you’re considering this as a gift, check with the shop before buying
Related Pages
This article organizes information published on the seller’s site. Product details such as amount, storage method, and ingredients may change. Please check the seller’s listing for the latest information.
Evaluations of taste and quality are quotes from third-party posts with sources noted; they are not Ochinity’s own evaluations. Our approach to writing articles is described in our Editorial Policy.
Information as of: September 13, 2026 / Sources: Rakuten Ichiba “Uni Kani Maguro nara Tsukiji no Osama” product page, Rakuten customer reviews, Consumer Affairs Agency “About Allergen Labeling”
