100% Kuroge Wagyu Handmade Hamburg Steaks — Contents, Shelf Life & Reviews

Featured image for the 100% Kuroge Wagyu Handmade Hamburg Steaks, 150g x 8. On the left: the kicker "Mail-Order Gourmet Comparison," the title "100% Kuroge Wagyu" / "Handmade Hamburg Steaks, 150g x 8," and the subhead "High-End Wagyu Specialty Shop Sezon Bushe | Kuroge Wagyu Hamburg Steaks." On the right, a close-up photo of a seared hamburg steak on a hot iron plate with juices bubbling and steam rising. Text the shop placed in the image reads: a round "Osaka-made" (大阪産) logo and "黒毛和牛100% 手作りOSAKAハンバーグ" (100% Kuroge Wagyu Handmade OSAKA Hamburg).
Information as of 2026.09.25 PR
Product photo of the 100% Kuroge Wagyu handmade hamburg steak, a close-up of it being seared on a hot iron plate with juices bubbling and steam rising. Text the shop placed in the image reads: a round “Osaka-made” (大阪産) logo and “黒毛和牛100% 手作りOSAKAハンバーグ” (100% Kuroge Wagyu Handmade OSAKA Hamburg).
Image: From the Rakuten Ichiba “High-End Wagyu Specialty Shop Sezon Bushe” product page. The text in this image was added by the seller and is not a fact confirmed by Ochinity. The photo shows the product after cooking.

Hamburg steaks made with Kuroge Wagyu come in both pre-formed, ready-to-heat versions and raw versions you cook yourself, so the product name alone can make it hard to tell whether a given item can be cooked as-is or how many servings it makes. Note that the “大阪産” (Osaka-made) and “OSAKA” text in the product image was placed there by the shop; the product page lists the ingredient origin only as “Domestic (Japan)” without naming a prefecture, and Matsubara, Osaka is the place of processing. This article organizes the publicly available product information and review-site descriptions for High-End Wagyu Specialty Shop Sezon Bushe’s 100% Kuroge Wagyu handmade hamburg steaks, 150g × 8, into five points: amount, storage method, ingredient labeling, suitability as a gift, and reviews.

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What We Confirmed

  • Amount
  • Storage method and best-before date
  • 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 NameKuroge Wagyu 100% Handmade Hamburg Steaks, 150g×8, Frozen, Individually Packed, Vacuum-Sealed
NameWagyu beefSource: as shown on the product page (viewed September 25, 2026)
Amount150g × 8 pieces (eight hand-formed hamburg steaks, 150g each, individually vacuum-packed)Source: product page description
What Changes by SelectionNot confirmed (the only size we could confirm was 150g × 8; we could not confirm on the product page whether other sizes exist)
Storage MethodStore frozen (place in the freezer as soon as it arrives)Source: product page description
Best-Before DateAbout 2 months from the delivery date, kept frozen. The product page’s overview lists this under “best-before date,” while the “Product Details” section of the description lists the same information under “use-by date”Source: product page overview and description
Country of OriginDomestic (Japan) — the beef and onion are each separately labeled “Domestic (Japan)”Source: product page description
Place of ProcessingMatsubara, OsakaSource: product page manufacturer listing (see the “Manufacturer” row below for the street address)
State / How to Eat (Whether Cooking Is Required)This is a raw-type product; the product page advises cooking it before eatingSource: product page description
Thawing MethodNot confirmed
ShippingFrozen (vacuum-sealed packaging)Source: product page description
ManufacturerMorita Shoten Co., Ltd. (株式会社森田商店) / 3-8-13 Minami-Shincho, Matsubara, Osaka 580-0023, Japan / TEL 072-336-0707Source: product page manufacturer listing
ShopHigh-End Wagyu Specialty Shop Sezon Bushe (Rakuten Ichiba: 1129saisonb)

Prices are not listed here because they change. Please check the current price and stock availability at the link above.

Ingredients and Allergen Labeling

According to the product page, the ingredients are beef (Japan), onion (Japan), breadcrumbs, milk, egg, mayonnaise, soy sauce, salt, pepper, consommé, sugar, sake, mirin, garlic, ginger, sesame oil, and doubanjiangSource: product page description.

The allergen labeling states that the product contains beef, wheat, dairy, egg, soy, and sesame among its ingredientsSource: product page description. If you have an allergy to any of the above, or would like to check the detailed ingredient labeling, please contact the shop before purchasing or check the food information label on the product once it arrives.
Reference: Consumer Affairs Agency, Japan, “About Allergen Labeling” (accessed September 25, 2026)

Five Things to Check Before Buying

What to CheckFor This ProductBasis
1. Amount Individually packed, 150g × 8. Please check the purchase page for the number of servings Product page description
2. Storage method and best-before date Stored frozen. About 2 months from the delivery date is given as a guideline Product page description
3. Ingredients and allergen labeling Contains beef, wheat, dairy, egg, soy, and sesame Product page description
4. Suitable as a gift Noshi gift wrapping, message cards, and gift wrapping are supported. Please check the purchase page for the type of noshi inscription and the packaging style Product page description
5. Review trends The name of the sort order, how many reviews were read, the span of posting dates, and how recent the latest review is are not confirmed (because we referred to the review page’s summary display), so this trend may not reflect the product’s current state. Rakuten Ichiba’s rating is 4.62 out of 5 (2,011 reviews). Many comments praise the juiciness and convenience, while some note that the flavor is strong Rakuten customer reviews (viewed September 25, 2026)

Suitable as a Gift?

The product page states that it supports noshi gift wrapping (including name printing), message cards, and gift wrappingSource: product page description. If you are considering it as a gift, checking the following before purchase can help avoid misunderstandings.

  • Please check the purchase page for the type of noshi inscription and the packaging style (whether it comes in a gift box)
  • Because it arrives frozen, whether you can specify a delivery date and time the recipient can receive it

What Public Reviews Say

We organized these trends based on the ratings and review summary shown on the Rakuten Ichiba review page. The name of the sort order, how many reviews were read, the span of posting dates, and how recent the latest review is are not confirmed (because we referred to the review page’s automatic summary display). This sort order may not reflect the product’s current state. The rating figures are as of the time we accessed them and may change afterward.

SiteRatingReviewsViewed
Rakuten customer reviews (product page)4.62 / 52,011September 25, 2026

What Reviewers Praise

Many reviews mention the juiciness, rich beef flavor, and tender, easy-to-eat texture. Some also praise how easy it is — just thaw and grill — and the generous volume the whole family can enjoy.

Source: Rakuten customer reviews (viewed September 25, 2026)

Some reviews mention giving it as a gift and the recipient being pleased, as well as repeat purchases.

Source: Rakuten customer reviews (viewed September 25, 2026)

What Reviewers Note

A few reviews point out that the flavor is strong, or comment on the amount of filler (binding ingredients) used.

Source: Rakuten customer reviews (viewed September 25, 2026)

Who It Suits / Who Should Be Careful

Who It Suits

  • Want to grill and eat hamburg steaks without the effort of shaping them
  • Want individually packed portions to use as many as needed
  • Want to use noshi gift wrapping or gift packaging for a gift
  • Want to stock up a family-size supply

Who Should Be Careful

  • Have an allergy to beef, wheat, dairy, egg, soy, or sesame
  • Want to decide on the number of servings or the noshi inscription before choosing (please check both on the purchase page)
Where to Buy

Prices, stock, shipping fees, and delivery dates are subject to change. This article’s information-as-of date is September 25, 2026. Please be sure to check the listing at the link before purchasing.
This article contains affiliate links (advertising). Editorial Policy

Summary

  1. Individually packed at 150g × 8, so you can use just what you need. Please check the purchase page for the number of servings
  2. Store frozen. Eat within about 2 months of the delivery date as a guideline
  3. Allergen labeling lists beef, wheat, dairy, egg, soy, and sesame. If using it as a gift, please check the purchase page for the type of noshi inscription

Related Pages

This article organizes information published on various retail and review sites. Product details such as amount, 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: September 25, 2026 / Sources: Rakuten Ichiba “High-End Wagyu Specialty Shop Sezon Bushe” product page, Rakuten customer reviews, Consumer Affairs Agency, Japan, “About Allergen Labeling”

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