“Extra-Large” and “4L” are size names given by Kaisen Kanidokoro (海鮮かに処), the shop, and do not indicate ranking or superior quality. Even within the same “shoulder-leg, 1 cluster” product line, the shop offers different size grades, and it isn’t easy to tell from the product page alone how much you’re getting when you’d prefer a smaller amount or want to combine it with other dishes. This article organizes the product page’s information on Kaisen Kanidokoro’s Extra-Large 4L raw king crab shoulder-leg, 1 cluster (total weight approx. 1.2kg), into five points: contents, storage method, ingredient labeling, gift suitability, and customer reviews.
What This Article Covers
- Contents and a serving-size guide by use case
- Storage method and shelf life
- Ingredient and allergen labeling
- Suitability as a gift
- Trends in published customer reviews
Basic Information
| Product Name | Extra-Large 4L Raw King Crab Shoulder-Leg, 1 Cluster (Total Weight Approx. 1.2kg). “Extra-Large” and “4L” are size names given by Kaisen Kanidokoro and do not indicate ranking or superior qualitySource: Product page (as of September 14, 2026) |
|---|---|
| Condition | Raw (uncooked, frozen). The product page’s product description lists the ingredient as “raw king crab”Source: product description on the product page (as of September 14, 2026). This is not boiled (pre-cooked) |
| Amount | 1 cluster — a whole leg segment still attached to the shoulder joint (reference: total weight approx. 1.2kg, net weight approx. 1.1kg)Source: Same as above |
| Serving Size Guide | The shop’s 3-tier guide: Light (crab as a side dish) 4–5 servings / Standard (crab as the main dish) 3–4 servings / Hearty (filling up on crab alone) approx. 2 servingsSource: Same as above |
| Box Size | Approx. 19.1cm × 48.3cm × 11.4cm (height)Source: Same as above |
| Leg Thickness | Not confirmed (The product page does not list measured thickness or length for individual legs. Only the total weight and net weight are confirmed.) |
| Storage Method | The shop advises storing in the freezer immediately upon arrival. A specific storage temperature (e.g., −18°C or below) could not be confirmed — Not confirmedSource: Same as above |
| Best-Before Date | The shop advises consuming within about 1–2 months when stored in a home freezerSource: Same as above |
| Thawing Method | Thaw under running water for about 5–10 minutes just before eating. A notice warns that leaving it in the refrigerator or at room temperature for several hours may cause discoloration (blackening)Source: Same as above |
| Country of Origin | Russia (raw king crab)Source: Same as above |
| Processing Location | Not confirmed |
| Raw Consumption / Heating | The product page does not state whether raw consumption is possible or how to heat it — Not confirmed. Please check the product page or contact the seller before purchasing |
| About the Shape | If a cluster’s shoulder is broken, the shop explains that it adjusts the weight by combining “sashiashi” (leg pieces cut to match the shape of the shoulder)Source: Same as above |
| Shipping | Kuroneko Yamato frozen delivery. Usually shipped 2–4 business days after ordering, arriving 1–2 days after shipment. The shop states a preferred delivery date can typically be specified starting 6 days outSource: Same as above |
| Shop | Kaisen Kanidokoro (Rakuten Ichiba) |
Prices are not listed because they change over time. Please check the link above for the latest price and stock availability.
Ingredients & Allergen Labeling
As far as we could confirm, the product page does not include ingredient names or additives in the standardized food labeling format. This item is Not confirmed.
Also, because this product’s ingredient is crab, it cannot be eaten by anyone with a crustacean/shellfish allergy. If you’d like to confirm additives used in processing (such as antioxidants), please contact the seller before purchasing or check the standardized food label on the product when it arrives.
Reference: Consumer Affairs Agency, “About Allergen Labeling” (accessed September 14, 2026)
5 Points to Check Before You Choose
| Item to Check | For This Product | Source |
|---|---|---|
| 1. Amount / Servings | 1 cluster, total weight approx. 1.2kg (net 1.1kg). Per the shop’s guide, using it as a side dish serves 4–5 people, and eating crab alone serves about 2. The thickness of each leg (measured in cm, etc.) is not listed on the product page — Not confirmed | Product description on the product page |
| 2. Storage & Shelf Life | Freeze immediately upon arrival. About 1–2 months is the guideline for a home freezer. A specific storage temperature is Not confirmed | Product description on the product page |
| 3. Ingredients & Allergen Labeling | Not confirmed (no standardized food labeling format found). Since crab is the ingredient, those with a crustacean/shellfish allergy cannot eat this product | Checked on the product page |
| 4. Suitable as a Gift? | The product description includes the phrase “gift-compatible,” but the Gift section of the product page confirms that noshi (gift wrapping label) is not supported. Specific details such as the gift box are Not confirmed | Product description / Gift section of the product page |
| 5. What Reviews Say | Rating 4.46/5 (367 reviews). Of the 6 reviews shown in the page’s default (“Standard”) sort order that we read, favorable comments were the most common | Rakuten API (information as of September 14, 2026) / review section of the product page |
Suitable as a Gift?
The product description includes the phrase “gift-compatible,” but when we checked the Gift section of the product page, this product does not support noshi (gift wrapping label). Specific details such as whether it comes as a gift box or a simple gift box, and whether a message card or name printing is available, could not be found, so this item is Not confirmedSource: Gift section display and product description on the product page (as of September 14, 2026). If you’re considering this as a gift, checking the following with the seller before purchase can help avoid misunderstandings.
- Since noshi is not supported, how you convey the gift occasion (e.g., oseibo (year-end gift), ochugen (mid-year gift), or uchi-iwai (a return gift for a family celebration))
- Whether a gift box, simple gift box, or gift wrapping is available
- Whether a message card or name printing is available
- Since it arrives via frozen delivery, whether the recipient can specify a date and time to receive it
Published Customer Reviews
Rakuten customer reviews (“Minna no Review”) total 367, with an average rating of 4.46/5 (Rakuten API value, information as of September 14, 2026. The breakdown is 5 stars = 253 / 4 stars = 69 / 3 stars = 17 / 2 stars = 15 / 1 star = 13, and the total matches the review count). The sort order is the product page’s default, “Standard,” and this time we checked the 6 reviews shown in that order (posted between December 24, 2025 and February 1, 2026). Because “Standard” order is not by posting date, the most recent posting date among the 6 we checked (February 1, 2026) is not necessarily the latest review overall — this point is Not confirmed. This sort order and count do not necessarily reflect the product’s current condition.
Among the 6 reviews we checked, several commented that the crab was sweet and that they were satisfied with the size and taste, that the legs were well filled with meat, and that what arrived matched the photos, with some indicating they would buy again. On the other hand, one review felt the saltiness was a bit strong, and one review — noting this is raw crab — said the meat didn’t separate from the shell very well after thawing. One review also mentioned a smell noticed on a past purchase, saying this time’s order was not a problem.
Source: Rakuten customer reviews (“Minna no Review”) (6 reviews checked, posted December 24, 2025 – February 1, 2026, accessed September 14, 2026)
A Good Fit For / Who Should Be Careful
A Good Fit For
- You’re a small group and want to combine crab with other dishes
- You’d rather have crab as a side dish than a “Hearty,” crab-only meal
- You have room in your freezer for the box (approx. 19.1×48.3×11.4cm)
- You don’t mind if the cluster includes “sashiashi” pieces matched to the shoulder’s shape
Who Should Be Careful
- You have a crustacean/shellfish allergy (this product cannot be eaten, since crab is the ingredient)
- You’re gathering with a large group and want to fill up on crab alone (a larger size may suit you better)
- You want this as a gift and expect noshi support (this product does not support noshi)
- You want to confirm safety-related details such as storage temperature and whether heating is required beforehand (some items are Not confirmed)
Prices, stock, shipping fees, and delivery dates are subject to change. The information in this article was gathered as of September 14, 2026. Please be sure to check the listing at the link before purchasing.
This article’s links include affiliate advertising. Editorial Policy
Summary
- “Extra-Large” and “4L” are size names given by Kaisen Kanidokoro, with total weight approx. 1.2kg (net 1.1kg). Per the shop’s guide, using crab as a side dish serves 4–5 people, and eating crab alone serves about 2 — a size suited to small groups or side-dish use
- Raw (uncooked, frozen). Store in the freezer immediately upon arrival; the guideline for a home freezer is about 1–2 months, but a specific storage temperature and whether heating is required could not be confirmed from the product page — Not confirmed
- Allergen labeling is Not confirmed. If considering this as a gift, check with the seller, keeping in mind that noshi is not supported
Related Pages
This article organizes information published on the retailer’s site. Product details such as contents, storage method, and ingredients may change. Please check the seller’s listing for the latest information.
Evaluations of taste or quality are quoted from third-party posts and data with sources cited, and are not Ochinity’s own assessments. How this article was created is described in our Editorial Policy.
Information as of: September 14, 2026 / Sources: Rakuten Ichiba “Kaisen Kanidokoro” product page, Rakuten API, Rakuten customer reviews (“Minna no Review”), Consumer Affairs Agency “About Allergen Labeling”
