まぐろ処一条 Hokkaido Scallop Adductor Muscle, 300g — Contents & Reviews

Featured image for the Hokkaido scallop adductor muscle, 300g, from まぐろ処一条: a photo of scallop adductor muscles served on a black round plate with shredded daikon and a shiso leaf (a serving suggestion). Text the shop put into the image: “北海道産” (from Hokkaido) “生ほたて貝柱” (scallop adductor muscle) “300g”, plus the shop logo “まぐろ処一条”
Information as of 2026.10.25 PR
Product photo of scallop adductor muscles (まぐろ処一条 Hokkaido Scallop Adductor Muscle 300g) served on a black round plate with shredded daikon and a shiso leaf. Text the shop put into the image: “北海道産” (from Hokkaido) “生ほたて貝柱” (scallop adductor muscle) “300g”, plus the shop logo “まぐろ処一条”
Image: from the Rakuten Ichiba “まぐろ処 一条” product page. The photo is a serving suggestion; the shredded daikon, shiso leaf and plate are not included with the product.

This is a frozen, Hokkaido-produced scallop adductor muscle product, 300g, sold by まぐろ処一条 of Iwaki City, Fukushima Prefecture (operated by 株式会社東日本貿易). One pack holds 10–20 pieces. We organized what the Rakuten Ichiba product page and reviews say into five points: quantity, shelf life, ingredient labeling, suitability as a gift, and reviews. The three features we could confirm on the product page are that the pieces are frozen individually so you can take them out one at a time, that it comes in a small 300g pack, and that the name field in the product description is labeled for raw consumption.

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At a Glance

Key points

  1. One 300g pack (10–20 pieces), frozen. The page describes the pieces as individually frozen so you can take them out one at a time. At 300g in total, it is the smallest amount among the 5 shellfish items featured on Ochinity whose total amount we could confirm (as of October 25, 2026); the other 4 items are 1kg or more
  2. The name field in the product description is labeled for raw consumption. The directions-for-use field says it can be eaten as is after natural thawing (as labeled by the shop)
  3. Support for noshi (gift wrapping label) and message cards is shown on the Rakuten Ichiba product page
  4. Rakuten rating 4.71 (376 reviews). Viewed October 25, 2026. We read 77 of the reviews

Watch out for

  • The product page does not give a date for the best-before date and says only that it is printed on the product. The number of pieces per pack varies widely, from 10 to 20
  • We could not confirm on the product page the allergen labeling or the types of inscription for noshi

Suits: Someone who wants to keep a small 300g pack in the freezer and take out only what they use, one piece at a time

The comparison covers the 6 shellfish items featured on Ochinity (as of October 25, 2026). Each value is as of the date its own article was researched and may differ from the current listing. The key points are from the Rakuten Ichiba product page (viewed October 25, 2026). The rating is as shown on Rakuten (viewed October 25, 2026) and may not reflect the product’s current condition.

Compared with 6 Similar Shellfish Items

The 6 shellfish items featured on Ochinity (as of October 25, 2026). Each value is as of the date its own article was researched and may differ from the current listing. Ratings are as shown on Rakuten (aggregate figures at the time of viewing), may not reflect the product’s current condition, and the fewer the reviews, the more easily the figure moves. The rows follow the Japanese gojūon (syllabary) order of the product names, with this article first.

ProductTotal amountDelivery temperatureRakuten rating
Hokkaido Scallop Adductor Muscle (生ホタテ貝柱) 300g (まぐろ処一条)This article300gFrozen4.71376 reviews
VIVIDLIFE Scallop Adductor Muscle, 生食用 (for Raw Consumption), Extra-Large/Large, 1kg1kg or 2kgFrozen4.83111 reviews
Escargot à la Bourguignonne, Shell-On with Butter, 30 PiecesNot confirmedFrozen4.39233 reviews
Held (Stock-Farmed) Hard Clams, “4-Year” per the Product Name, 5–6cm, 1kg (マルタカ水産)1kgChilledcan also be frozen4.72846 reviews
Hokkaido Scallop Adductor Muscle Toku-A/A Grade 1kg (魚の北辰)1kgFrozen4.681585 reviews
Wakeari Raw Hokkaido Scallop Adductor Muscle 1kg (甲羅組)1kgFrozen4.5514954 reviews

You can go to each product’s article from its name. The number of reviews is the figure at the time the Rakuten listing was viewed for that article.

  • At 300g in total, this is the smallest amount among the 5 shellfish items featured on Ochinity whose total amount we could confirm (as of October 25, 2026). The other 4 items are 1kg or more, and one of them (VIVIDLIFE) can also be chosen as 2kg. The total amount of Escargot à la Bourguignonne is not confirmed
  • The 376 reviews behind the Rakuten rating of 4.71 are fewer than for 3 of the other 5 items (14954, 1585 and 846 reviews) and more than for 2 (233 and 111 reviews)

Basic Information

Product name
まぐろ処一条 Hokkaido Scallop Adductor Muscle (生ホタテ貝柱) 300g
Shop
まぐろ処 一条 (Rakuten Ichiba) / Iwaki City, Fukushima Prefecture
Amount
300g (10–20 pieces)
Storage
The page says it is delivered frozen (the best-before date is not confirmed)
State / how to eat
The name field in the product description is labeled for raw consumption (as labeled by the shop)
Allergen labeling
Not confirmed
Shipping
The page says it ships frozen
Noshi and gifting
Support for noshi (gift wrapping label) and message cards is shown (inscription types and wrapping: not confirmed)

This list transcribes what is stated on the product page. However, the “not confirmed” labels and any notes we add are our own.

The ingredients field lists only scallop (produced in Hokkaido), and we could not find an allergen labeling field on the product page. If you have an allergy, ask the shop before buying, or be sure to check the label on the product when it arrives (Reference: Consumer Affairs Agency, Japan, “About Allergen Labeling” (accessed October 25, 2026)).

See the transcribed details, sources and “not confirmed” items (16 items)

This list transcribes what is stated on the product page. However, the “not confirmed” labels and any notes we add are our own.

Product name
まぐろ処一条 Hokkaido Scallop Adductor Muscle (生ホタテ貝柱) 300gThe product name shown on the Rakuten Ichiba product page is a long string with many search words. Here we show only the product name part.
Type of food
The name field in the product description reads ホタテ貝柱(生食用) (scallop adductor muscle, for raw consumption)Source: Product description on the Rakuten Ichiba product page (viewed October 25, 2026)
Amount
The page says 300g (10–20 pieces). The description images say the pieces are frozen individually, and that you can take out only what you need when you need it. How many people it serves is not stated, so it is not confirmedSource: Product description and description images on the Rakuten Ichiba product page (viewed October 25, 2026)
Options
The only option for the amount is 300g (10–20 pieces). This article covers this oneSource: Order fields on the Rakuten Ichiba product page (viewed October 25, 2026)
Storage method
The page says that storing it in the freezer for about 1 month is recommended. The storage temperature is not confirmedSource: Product description on the Rakuten Ichiba product page
Best-before date
The best-before date field says it is printed on the product. The product page does not give the date, so it is not confirmedSource: Product description on the Rakuten Ichiba product page
How to thaw
The directions-for-use field in the product description says it can be eaten as is after natural thawing. In the description images, the shop says to place the frozen pieces on a plate without overlapping and let them thaw naturally in the refrigerator (about 3–5 hours). For when you are in a hurry, it also describes quick thawing: put them in a plastic bag and run water over the bag (about 30 minutes)Source: Product description and description images on the Rakuten Ichiba product page
After thawing
The page says they should be eaten the same day after thawing. Other cautions, such as whether they can be refrozen, are not confirmedSource: Product description on the Rakuten Ichiba product page
Raw material origin
The origin and ingredients field says 帆立貝(北海道産) (scallop, produced in Hokkaido)Source: Product description on the Rakuten Ichiba product page
Place of processing
Not confirmed (we could not find it on the product page)
State / how to eat (whether cooking is required)
The name field in the product description is labeled for raw consumption. In the description images, the shop says that just thawing it naturally in the refrigerator lets you serve it as sashimi. The product name and the description images also give examples of ways to eat it, both cooked and uncooked, such as butter-sautéed, fried, stir-fried, rice bowls and sushi. A guideline for cooking is not confirmedSource: Product name, product description and description images on the Rakuten Ichiba product page
Allergen labeling
Not confirmed (we could not find an allergen labeling field on the product page)
Delivery
The notes in the product description say it ships frozen. The description images say it is packed in a Styrofoam or cardboard box (both with cold packs) and sent by Yamato Transport (ヤマト運輸) Cool TA-Q-BIN (frozen). The number of days until shipping is not confirmedSource: Product description and description images on the Rakuten Ichiba product page
Noshi and gifting
The Rakuten Ichiba product page shows support for noshi (gift wrapping label) and message cards. The types of inscription for the noshi, and whether a gift box or wrapping is available, are not confirmedSource: Rakuten Ichiba product page (viewed October 25, 2026)
Manufacturer
The seller field in the product description says まぐろ処一条 (Iwaki City, Fukushima Prefecture). The company overview page on Rakuten Ichiba says the operating company is 株式会社東日本貿易. The manufacturer and processor are not confirmedSource: Product description on the Rakuten Ichiba product page, and the shop’s company overview page (viewed October 25, 2026)
Shop
まぐろ処 一条 (Rakuten Ichiba)

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

Description image combining photos of individually frozen scallop adductor muscles, scallop adductor muscles served on a plate with lemon and a shiso leaf, and a bag of frozen scallop adductor muscles (まぐろ処一条 Hokkaido Scallop Adductor Muscle 300g). Text the shop put into the image: “バラ凍結なので小分け保存もOK” (loose-frozen, so portions can be stored separately) “最新の冷凍技術により1玉ずつ個別(バラ)冷凍されています。必要な時に使う分だけ取り出せてとっても便利。” (each piece is frozen individually with the latest freezing technology; take out only what you need, which is very convenient) “自然解凍できて手間なく使えます” (thaws naturally, with little effort) “解凍は、お皿の上に凍ったほたてを重ならないように乗せ、冷蔵庫でじっくり自然解凍して下さい。(目安:3~5時間)。お急ぎの場合は、ビニール袋に入れ、袋の上から流水を当て急速解凍して下さい(目安:約30分)” (place the frozen pieces on a plate without overlapping and thaw slowly in the refrigerator, about 3 to 5 hours; for a quicker thaw, put them in a plastic bag and run water over the bag, about 30 minutes)
Image: from the Rakuten Ichiba “まぐろ処 一条” product page. The plated photo in the image is a serving suggestion; the lemon, shiso leaf and plate are not included with the product.

What Public Reviews Say

We organized the Rakuten Ichiba product reviews by viewpoint. The rating figures are as of the time we viewed them and may change afterward. What follows are trends within what we read and may not reflect the product’s current condition.

SiteRatingReviewsViewed
Rakuten customer reviews (product page)4.71 / 5376October 25, 2026

Rating breakdown: 5★ 292 / 4★ 67 / 3★ 9 / 2★ 7 / 1★ 1 (as shown on Rakuten Ichiba, viewed October 25, 2026)

What we read: the first 60 reviews in Rakuten’s default order (posted December 2024 to October 2026; latest October 2026), plus all 1 review at 1★ (posted November 2022), all 7 reviews at 2★ (posted December 2015 to January 2024) and all 9 reviews at 3★ (posted September 2015 to January 2026), 77 in total. These are trends within what we read and may not reflect the product’s current condition.

There are only 17 reviews at 1★ to 3★ combined, so the strength of a trend cannot be judged from the counts alone. All 8 reviews at 1★ and 2★ were posted in January 2024 or earlier. All 60 in the default order were posted in December 2024 or later. The counts below are approximate figures we counted by reading the text, and they exclude posts only about delivery or shop service.

What Reviewers Praise

Sweetness (about 15 of 60)

About 15 of the 60 reviews in the default order say it is sweet or has a sweetness to it. About 18 reviews say they ate it as sashimi, and about 7 say they cooked it, for example butter-sautéed, breaded and deep-fried, or as ajillo (as stated by the reviewers).

Size of the pieces and satisfying to eat (about 15)

About 15 of the 60 reviews in the default order say the pieces are large or satisfying to eat. About 4 reviews also say there was plenty, or that it was just the right amount to finish in one sitting.

Thickness of the flesh (about 11)

About 11 of the 60 reviews in the default order say the flesh is thick and meaty.

Used as a gift (about 8)

About 8 of the 60 reviews in the default order say they used it as a gift for parents, a son or an acquaintance, for Respect for the Aged Day, Father’s Day, ochugen (mid-year gift), or a birthday. About 5 reviews say the recipient was pleased or thanked them.

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

What Reviewers Note

Size and uniformity of the pieces (3 of 60 + 1 at 3★)

2 of the 60 reviews in the default order say the pieces were smaller than expected, or that small and large pieces were mixed together. 1 review also says the flesh was on the small side but thick and satisfying. Among the 9 reviews at 3★, 1 posted in October 2024 says the size was clearly smaller than last time and the number of pieces was also lower.

How to check: the number of pieces per pack (10–20 pieces) is in the “Amount” row of “Basic Information” in this article.

Mentions of price (2 of 60)

2 of the 60 reviews in the default order mention that the price had changed compared with a previous purchase (as stated by the reviewers; they do not give a price figure). Both were 4★.

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

Summary: Is This the One for You?

Why choose it: You want a frozen scallop adductor muscle that arrives in a small 300g pack, with the pieces frozen individually so you can take out only what you use. If these two conditions apply, this product fits: it is a small 300g pack described as individually frozen. Among the 5 shellfish items whose total amount we could confirm (as of October 25, 2026), 300g is the smallest amount (weak points: the product page does not give a date for the best-before date, and the number of pieces varies widely, from 10 to 20).

  1. The Rakuten rating is 4.71 / 5 (376 reviews). Within the 77 we read, the 60 in the default order often mentioned sweetness (about 15) and the size of the pieces and how satisfying they are to eat (about 15)
  2. It arrives frozen, and the shop describes natural thawing in the refrigerator (about 3–5 hours). The page says they should be eaten the same day after thawing
  3. Support for noshi and message cards is shown. About 8 of the 60 reviews also say they used it as a gift

Other options: If you want to choose the size by looking at the piece count per 1kg, there is VIVIDLIFE Scallop Adductor Muscle, 生食用 (for Raw Consumption), Extra-Large/Large, 1kg (L 21–25 pieces / M 26–30 pieces); if you want to choose by grade, there is Hokkaido Scallop Adductor Muscle Toku-A/A Grade 1kg (魚の北辰) (1kg, chosen from Toku-A grade and A grade).

The basis for this section is the Rakuten Ichiba product page and Rakuten customer reviews (viewed October 25, 2026). These are review trends within what we read and may not reflect the product’s current condition. Values for the other products are as of each article’s information-as-of date.

Where to Buy
View on Rakuten Ichiba Amazon: availability not confirmed Yahoo! Shopping: availability not confirmed

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

On the Rakuten Ichiba product page, the only option for the amount is 300g (10–20 pieces). This article covers this one.

This article organizes information published on product pages and review sites. Product details such as quantity, storage method, and ingredients are subject to change. Please check the product page 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 25, 2026 / Sources: Rakuten Ichiba “まぐろ処 一条” product page, Rakuten customer reviews, Consumer Affairs Agency, Japan, “About Allergen Labeling”

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We organize mail-order gourmet foods from across Japan using the product information published by sellers and the voices of people who bought them. Rather than our own tasting impressions, we focus on giving you the facts you need to choose. Read our editorial policy

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