This article covers “証明書付 黒毛和牛・サーロイン 600g” (Japanese Black beef sirloin with certificate, 600g), sold on Rakuten Ichiba by “良肉問屋” (本家かつめし亭). The specifications field of the product page states a carcass grade of A5, domestic origin, a quantity of 600g in total (2 packs of 300g), and frozen. The product page lists no number of servings, no allergen labeling field, and no thawing method, so we organized what is stated on the Rakuten Ichiba product page and in its reviews into five points: quantity, shelf life, ingredient labeling, suitability as a gift, and reviews.
What We Confirmed
- Quantity and a guideline for 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 | 証明書付 黒毛和牛・サーロイン 600g・最高ランク A5ランク 贅沢 ステーキ肉 お肉ギフト 和牛 お取り寄せグルメ 牛肉 高級 内祝 贈り物 プレゼント お祝い 誕生日The product name shown on the Rakuten Ichiba product page is a long listing with many search keywords. The portion shown here is the product name itself. |
|---|---|
| Name | Japanese Black beef sirloin steak (for steak, A5 grade)Source: product description on the Rakuten Ichiba product page (viewed October 8, 2026) |
| Amount | 600g (2 packs of 300g). The number of servings is not confirmedSource: product description and specifications field on the Rakuten Ichiba product page (viewed October 8, 2026) |
| What Changes by Selection | There is no field for choosing a quantity or specification; this is the only variant. At the time of ordering, there are fields for choosing noshi, furoshiki (wrapping cloth), and noshi name printingSource: order options on the Rakuten Ichiba product page (viewed October 8, 2026) |
| Cut and Grade | The cut is sirloin. The carcass grade is stated as A5Source: product description and specifications field on the Rakuten Ichiba product page |
| Storage Method | Frozen (−18°C or below)Source: product description on the Rakuten Ichiba product page |
| Best-Before Date | Stated as 1 year when kept frozen (−18°C or below). We could not find the starting date (manufacturing date or shipping date), so it is not confirmedSource: product description on the Rakuten Ichiba product page |
| Thawing Method | Not confirmedWe could not find a description in the product page (description text and product images) |
| After Opening | How long it keeps after thawing or opening is not described on the product page, so it is not confirmed |
| Raw Material Origin | The raw material is stated as Japanese Black beef, and the origin as domestic (Japan). We could not find the prefecture, so it is not confirmedSource: product description on the Rakuten Ichiba product page |
| Place of Processing | Not confirmed |
| State / How to Eat (Whether Cooking Is Required) | The food’s state is stated as frozen, and the meat’s intended use as for steak and for yakiniku (grilled meat). We could not find any guidance on whether cooking is required or whether it can be eaten rawSource: specifications field and product description on the Rakuten Ichiba product page |
| Shipping | The product is frozen. We could not find a description of the shipping temperature range, such as chilled or frozen delivery, so it is not confirmed. The page showed “scheduled to ship within 1–2 days (excluding shop holidays)” (as of October 8, 2026)Source: Rakuten Ichiba product page |
| Certificate | The product name includes “証明書付” (with certificate). We could not confirm the type or content of the certificate from the description text on the product page, so it is not confirmed. For mentions in reviews, see “What Public Reviews Say” belowSource: product name on the Rakuten Ichiba product page; Rakuten customer reviews |
| Manufacturer | The seller is listed as “良肉問屋 本家かつめし亭” (Kakogawa City, Hyogo Prefecture). We could not find a listing that distinguishes the manufacturer or processor, so it is not confirmedSource: product description on the Rakuten Ichiba product page (viewed October 8, 2026) |
| Shop | 良肉問屋 (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
Within what we could check, we could not find an allergen labeling field on the product page. The ingredient is stated as “黒毛和牛肉” (Japanese Black beef) (source: product description on the Rakuten Ichiba product page, viewed October 8, 2026). The allergen labeling item is not confirmed.
If you are concerned about allergies, please check with the seller before purchasing, and be sure to check the label on the product when it arrives.
Reference: Consumer Affairs Agency, Japan, “About Allergen Labeling” (accessed October 8, 2026)
Five Things to Check Before Buying
| What to Check | For This Product | Basis |
|---|---|---|
| 1. Amount and Number of Servings | 600g (2 packs of 300g). The number of servings is not confirmed | Product description and specifications field on the Rakuten Ichiba product page |
| 2. Storage Method and Shelf Life | Stated as frozen (−18°C or below) for 1 year. The starting date, thawing method, and how long it keeps after thawing are not confirmed | Product description on the Rakuten Ichiba product page |
| 3. Ingredients and Allergen Labeling | The ingredient is Japanese Black beef, and the origin is domestic (Japan). The allergen labeling field is not confirmed | Product description on the Rakuten Ichiba product page |
| 4. Suitable as a Gift | The type of noshi can be chosen when ordering, and there is a choice of furoshiki (4 kinds). Whether message cards are available is not confirmed | Order options on the Rakuten Ichiba product page |
| 5. Review Trends | Rakuten Ichiba’s rating is 4.72 out of 5 (1,836 reviews). We read the first 57 reviews in Rakuten’s default sort order, plus the 14 one-star and 15 two-star reviews (all that exist). Posts span October 2025 to October 2026 in the default sort order, January 2021 to February 2026 for one-star, and September 2020 to January 2024 for two-star. What follows is a trend within what we read and does not necessarily represent the product’s current state. Many comments mention that the recipient was pleased with it as a gift and the volume of 300g per steak, while the one- and two-star reviews point to a lot of fat and a difference from the photo | Rakuten customer reviews (viewed October 8, 2026) |
Suitable as a Gift?
The order options on the product page include fields for noshi and furoshiki (source: Rakuten Ichiba product page, viewed October 8, 2026). Noshi can be chosen from 45 kinds, including oseibo (year-end gift), ochugen (mid-year gift), onenga (New Year’s greeting), Mother’s Day, Father’s Day, uchiiwai (gift celebrating a happy event at home) and oiwai (celebration), and there is also an option to “request it (write it in the remarks field).” For noshi name printing, there is a field to choose “request / do not request” and enter the sender’s name.
- Noshi: supported (45 kinds as order options)
- Wrapping: the “gift service” options include furoshiki (assorted, pink, blue, green)
- Gift box: the “food packaging method” in the specifications field states “化粧箱入り・贈答用” (in a decorative box, for gifting). The product page has no explanation of whether it actually arrives in a decorative box, so this is not confirmed
- Message card: no description found, so it is not confirmed
- Shipping temperature range: the product is frozen. Explicit mention of chilled or frozen delivery is not confirmed
Of the 57 reviews we read in the default sort order, about 25 said the recipient was pleased with it as a gift (posted October 2025 to October 2026). This is a trend within what we read and does not necessarily represent the product’s current state. If you plan to give it as a gift, before ordering please check on the product page when the recipient can receive it and whether they have freezer space.
What Public Reviews Say
Below is a summary of Rakuten Ichiba product reviews, organized by viewpoint. The rating figures are as of the time we accessed them and may change afterward. What follows is a trend within what we read and does not necessarily represent the product’s current state.
| Site | Rating | Reviews | Viewed |
|---|---|---|---|
| Rakuten customer reviews (product page) | 4.72 / 5 | 1,836 | October 8, 2026 |
Rating breakdown: 5 stars 1,445 / 4 stars 304 / 3 stars 58 / 2 stars 15 / 1 star 14 (as displayed on Rakuten Ichiba; viewed October 8, 2026)
What we read: the first 57 reviews in the default sort order (posted October 2025 to October 2026, latest in October 2026), all 14 one-star reviews (posted January 2021 to February 2026, latest in February 2026), and all 15 two-star reviews (posted September 2020 to January 2024, latest in January 2024), 86 in total. This is a trend within what we read and does not necessarily represent the product’s current state.
One- and two-star reviews together total 29 (about 2% of all reviews). For posts about concerns that date from 2023 or earlier, we cannot tell whether they reflect the product’s current state, so we have made no judgment about improvement or decline.
What Reviewers Praise
Pleased the recipient
About 25 of the 57 reviews in the default sort order said the steak was given as a gift and the recipient was pleased (all posted within the last 2 years).
Generous 300g per steak
About 14 of the 57 reviews in the default sort order said the 300g per steak was plentiful and satisfying.
Tender and easy to eat
About 8 of the 57 reviews in the default sort order said the meat was tender and easy to eat.
Fat is not heavy
About 5 of the 57 reviews in the default sort order said the fat was not heavy and was just right.
Source: Rakuten customer reviews (viewed October 8, 2026)
What Reviewers Note
A lot of fat
About 17 of the 29 one- and two-star reviews (9 one-star, 8 two-star) said the marbling or fat was too much (4 of them posted within the last 2 years). In the 57 default-sort reviews, about 3 mentioned a fatty cut.
Different from the photo or sample
About 9 of the 29 one- and two-star reviews (7 one-star, 2 two-star) said the meat that arrived looked whiter than the product photo, or was not as thick (5 of them posted within the last 2 years).
No certificate included
2 of the 29 one- and two-star reviews (1 one-star, 1 two-star) said no certificate was enclosed (both posted in 2023).
How to check: how the “証明書付” (with certificate) in the product name is handled is summarized in the “Certificate” row of “Basic Information” in this article.
Source: Rakuten customer reviews (viewed October 8, 2026)
Who It Suits / Who Should Be Careful
Who It Suits
- Looking for sirloin steak meat (2 packs of 300g, 600g in total)
- Looking for a gift with a choice of noshi and furoshiki
- Have freezer space for 600g
- Want a product whose carcass grade is stated as A5
Who Should Be Careful
- Concerned about allergies (the allergen labeling field is not confirmed)
- Want to know the thawing method and how long it keeps after thawing in advance (not confirmed)
- Concerned about the amount of fat or a difference in appearance from the photo (mentioned in some reviews)
- Want to buy on the assumption of what the certificate contains (cannot be confirmed from the product page)
Prices, stock, shipping fees, and delivery dates are subject to change. This article’s information-as-of date is October 8, 2026. Please be sure to check the listing at the link before purchasing.
This article contains affiliate links (advertising). Editorial Policy
Summary
- Stated as 2 packs of 300g for a total of 600g, frozen (−18°C or below) for 1 year. The specifications field gives a carcass grade of A5 and a domestic origin. The number of servings, the starting date, and the thawing method are not confirmed
- We could not find an allergen labeling field on the product page. There are 45 noshi options and 4 furoshiki options. Message cards and the shipping temperature range are not confirmed
- Many reviews say the recipient was pleased and mention the generous 300g per steak, while some one- and two-star reviews mention a lot of fat, differences from the photo, and a certificate not being enclosed (a trend within the 86 reviews we read, not necessarily the product’s current state)
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 8, 2026 / Sources: Rakuten Ichiba “良肉問屋” product page, Rakuten customer reviews, Consumer Affairs Agency, Japan, “About Allergen Labeling”
![Product photo of thin slices of Omi beef for sukiyaki spread across a black plate with green leaves as a garnish (配送月が選べる 近江牛 すき焼き [Omi beef sukiyaki with a choice of delivery month]). Text the shop placed in the image: “定期便 容量も選べる” (subscription plans, size also selectable), “近江牛” (Omi beef), “すき焼き用” (for sukiyaki), “450g~470g”](https://ochinity.com/wp-content/uploads/2026/10/eye-furusato-10000946-en-300x158.webp)
Comments