This is 1kg (1 bag) of Okinawa-grown mozuku (a type of edible seaweed) whose manufacturer is shown as 有限会社 仙崎海産 of Nagato City, Yamaguchi Prefecture. We organized what the Rakuten Ichiba product page and reviews state into five points: contents, shelf life, ingredient labeling, suitability as a gift and reviews. The features confirmed on the product page are that the shop says it is desalted and washed and can be used straight from the bag, and that it says the mozuku can be divided into 50–100g portions and frozen.
At a Glance
Key points
- Contents: 1kg of mozuku (1 bag). This is the only size offered; there are no smaller options
- Desalted and washed; no salt removal needed. The shop states this in the product name and in an image in the product description
- Keep refrigerated (10℃ or below); best-before date is 30 days from manufacture. The product name says it can be stored frozen, and the shop also describes dividing it into 50–100g portions to freeze
- Rakuten rating: 4.83 (264 reviews). Viewed October 30, 2026. Among the 63 reviews we read, many mentioned freezing it in portions and not having to remove the salt or rinse it
Watch out for
- It arrives as 1kg in a single bag. The best-before date is 30 days from manufacture, and we could not find how to thaw it or how long it keeps after thawing on the product page, so these are not confirmed
Suits: Someone who wants to use it without removing salt or rinsing it, or who wants to divide 1kg into portions, freeze it and use it little by little
Source: Rakuten Ichiba product page and images in the product description (viewed October 30, 2026). The rating is as shown on Rakuten. The review trends come from the first 60 reviews in the default order plus all 1★ and 3★ reviews (63 in total, posted June 2023 to October 2026, the latest in October 2026) and may not represent the product’s current condition.
Basic Information
- Product name
- 仙崎海産 沖縄県産 生太もづく 1kg（2026年新物） (Okinawa-grown thick mozuku seaweed, 1kg, 2026 new-season product)
- Manufacturer / Shop
- Manufacturer: 有限会社 仙崎海産 (Nagato City, Yamaguchi Prefecture) / Shop: 仙崎海産 楽天市場店 (Rakuten Ichiba)
- Contents
- Mozuku, 1kg (1 bag)
- Ingredients
- Mozuku (produced in Okinawa Prefecture, thawed)
- Storage / Shelf life
- Keep refrigerated (10℃ or below) / best-before date is 30 days from manufacture / the product name says it can be stored frozen
- Allergen labeling
- Not confirmed
- Noshi / Gifts
- Noshi (gift wrapping label) is shown as available (types of inscription and wrapping: Not confirmed)
- Shipping
- The product page shows shipping within 2 business days (viewed October 30, 2026)
This list transcribes what is stated on the product page. However, the “not confirmed” labels and any notes we add are our own.
The product page does not give allergen labeling. If you have allergies, please ask the shop before buying, or be sure to check the label on the item when it arrives (reference: Consumer Affairs Agency, Japan, “About Allergen Labeling”, accessed October 30, 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
- 仙崎海産 沖縄県産 生太もづく 1kg（2026年新物） (Okinawa-grown thick mozuku seaweed, 1kg, 2026 new-season product)The product name shown on the Rakuten page is a long string with many search terms. Only the product-name part is shown here. The shop writes both “もづく” and “もずく”; this article writes “もずく” (mozuku).
- Contents
- Mozuku, 1kg (1 bag). The number of servings is not stated and is not confirmed. In an image in the product description, the shop says to divide what you cannot use up into portions of about 50–100g and freeze themSource: Rakuten Ichiba product page and images in the product description (viewed October 30, 2026)
- Options
- There is no size selection field; only 1kg is offeredSource: Rakuten Ichiba product page (viewed October 30, 2026)
- Price
- Prices are not listed here because they change. Please check the current price and stock availability at the link above
- Storage Method
- Keep refrigerated (10℃ or below). The product name says it can be stored frozenSource: product description and product name on the Rakuten Ichiba product page
- Best-Before Date
- 30 days from manufactureSource: product description on the Rakuten Ichiba product page
- How to Thaw
- We could not find this on the product page, so it is not confirmed. How long it keeps after thawing is also not confirmed. Please ask the shop
- After Opening
- We could not find this on the product page, so it is not confirmed
- Ingredients and Allergen Labeling
- The ingredient name is mozuku (produced in Okinawa Prefecture, thawed). We could not find allergen labeling (specified ingredients and similar) on the product page, so it is not confirmed. Please ask the shopSource: product description on the Rakuten Ichiba product page (viewed October 30, 2026)
- Country of Origin of Ingredients
- The ingredient name states “もずく（沖縄県産、解凍）” (mozuku, produced in Okinawa Prefecture, thawed)Source: product description on the Rakuten Ichiba product page
- Place of Processing
- Not confirmed. The manufacturer’s address is given as Nagato City, Yamaguchi Prefecture, but we found no statement of where it is processed
- Condition / How to Eat (Cooking Needed?)
- The shop says it is desalted and washed and can be taken out of the bag and used as it is. An image in the product description also includes a note that it has no sourness and can be eaten as it is. We did not find a label stating whether heating is needed or whether it can be eaten uncooked (生食). Serving ideas introduced include sunomono (vinegared dishes), miso soup, tempura, rolled omelet (tamagoyaki), zosui (rice porridge), salads, hiyashi chuka (chilled ramen noodles) and pastaSource: images in the product description on the Rakuten Ichiba product page (viewed October 30, 2026)
- Delivery
- The food delivery state in the product specifications is shown as refrigerated. Shipping is shown as within 2 business days (viewed October 30, 2026). In the shop’s company profile, shipment by cool delivery (クール便, temperature-controlled delivery) is stated as within 2 business days after order confirmation for credit card payment, or after payment confirmation for Rakuten Bank (楽天バンク) payment (viewed October 30, 2026). Delivery dates may changeSource: Rakuten Ichiba product page
- Manufacturer
- 有限会社 仙崎海産 (仙崎10406番地, Nagato City, Yamaguchi Prefecture). The seller in the product specifications is shown as (有)仙崎海産, and the seller’s address is not confirmed. Please ask the shopSource: product description and product specifications on the Rakuten Ichiba product page
- Noshi / Gifts
- Noshi (gift wrapping label) is shown as available. We could not find the types of inscription, the wrapping (gift box or gift wrapping) or message cards on the product page, so these are not confirmed. Please ask the shopSource: Rakuten Ichiba product page (viewed October 30, 2026)
- Shop
- 仙崎海産 楽天市場店 (Rakuten Ichiba)
Prices are not listed here because they change. Please check the current price and stock availability at the link above.
What Public Reviews Say
We organized the Rakuten Ichiba product reviews by theme. Ratings are as of the date viewed and change afterwards. The following are tendencies within the range we read and may not represent the product’s current condition.
| Site | Rating | Reviews | Viewed on |
|---|---|---|---|
| Rakuten customer reviews (product page) | 4.83 / 5 | 264 | October 30, 2026 |
Rating breakdown: 5★ 224 / 4★ 37 / 3★ 2 / 2★ 0 / 1★ 1 (as shown on Rakuten Ichiba, viewed October 30, 2026)
What we read: the first 60 reviews in Rakuten’s default order (posted February to October 2026; latest October 2026), the only 1★ review (posted September 2026) and both 3★ reviews (posted June 2023 and September 2026), 63 in total. There were no 2★ reviews. These are tendencies within what we read and may not reflect the product’s current condition.
Of the 60 reviews in the default order, 53 are 5★ and 7 are 4★; none are 3★ or below. With only 3 reviews at 1★ to 3★ combined, the counts alone cannot show how strong a tendency is. The counts below are approximate figures we counted by reading the reviews, and posts only about delivery or shop service are not included.
What Reviewers Praise
Can be frozen and used in portions (about 20 of 60)
About 20 of the 60 reviews in the default order said they divide it into portions and freeze it after it arrives, or felt the texture did not change after freezing. Some wrote as if they receive it expecting to freeze it, so that they can use the 1kg little by little.
No need to remove salt or rinse (about 15)
About 15 of the 60 reviews in the default order said there is no need to remove the salt, or that they can use it as it is without rinsing. Some who had used salted mozuku mention the difference in effort (reviewers’ own descriptions).
Texture and thickness (about 20)
About 20 of the 60 reviews in the default order wrote that it has a firm bite, is crisp or crunchy, or is thick and satisfying to eat. Some also say the texture remains when it is put in soups such as miso soup.
Compared with mozuku from supermarkets and convenience stores (about 12)
About 12 of the 60 reviews in the default order compared it with the cup-type mozuku bought at supermarkets and convenience stores, writing that it is thicker, that the amount is larger, or that they cannot go back to the other. The comparison target is another product the reviewer had bought, and this article does not name it.
Source: Rakuten customer reviews (viewed October 30, 2026)
What Reviewers Note
Price changes, or feels a little expensive (2)
One 3★ review said they were surprised that the price had changed greatly depending on when they bought, and one 4★ review among the 60 in the default order said they were satisfied with the taste but found it a little expensive, 2 in total. Because the price changes over time, this article does not list any amount.
There was 1 review at 1★, which said the flavor felt off. Because it is only one review, it is not taken up as a theme.
Source: Rakuten customer reviews (viewed October 30, 2026)
Summary: Is This the One for You?
Why choose it: If you want to use it without removing salt or rinsing it, and want to divide 1kg into portions, freeze it and use it little by little, this product fits those two conditions.
- The shop states in the product name and in an image in the product description that it is desalted and washed and can be taken out of the bag and used as it is
- The product name says it can be stored frozen, and dividing it into 50–100g portions to freeze is described. Among the 63 reviews we read, about 20 also mentioned freezing it in portions
- The Rakuten rating is 4.83 / 5 (264 reviews). The weak points are that it arrives only as 1kg in one bag, and that the best-before date is 30 days from manufacture
This section is based on the Rakuten Ichiba product page and Rakuten customer reviews (viewed October 30, 2026). Review tendencies are within the range we read and may not represent the product’s current condition.
Prices, stock, shipping fees, and delivery dates are subject to change. This article’s information-as-of date is October 30, 2026. Please be sure to check the listing at the link before purchasing.
This article contains affiliate links (advertising). Editorial Policy
This article organizes information published on the product page and review sites. Product details such as contents, storage method and ingredients may 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 30, 2026 / Sources: Rakuten Ichiba 仙崎海産 product page, Rakuten customer reviews, Consumer Affairs Agency, Japan, “About Allergen Labeling”
