“Kyushu” in this product’s name is a product designation and does not indicate where the ingredients come from (the country of origin of the raw materials is not listed on the Rakuten product page and is not confirmed). With a soy sauce and shiro-dashi (white dashi) set, it is easy to end up choosing without knowing how many mL the two bottles add up to, or where the ingredients and shelf life are written on the product page. In this article, we organized the publicly available product information and review-site descriptions for the Hoshisan Amakuchi (sweet) Soy Sauce 500mL and Tokusen Shiro-dashi 360mL set into five points: quantity, storage method, ingredient labeling, suitability as a gift, and reviews.
What We Confirmed
- Quantity and number of 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 | Soy Sauce Set ≪Kyushu Amakuchi Soy Sauce 500mL & Shiro-dashi 360mL≫ An assortment of “Koikuchi Soy Sauce (Amakuchi)” and “Tokusen Shiro-dashi”Source: listed with the ranking and rating wording, the preservative-related label, the shipping-fee notation, and search keywords removed from the product name shown on the Rakuten Ichiba product page (viewed October 5, 2026) |
|---|---|
| Name | not confirmed(No name is shown on the Rakuten Ichiba product page) |
| Amount | A set of 2 bottles: Amakuchi soy sauce 500mL + shiro-dashi 360mL. The product page has no selectable sizes; this is the only oneSource: Rakuten Ichiba product name and product description (viewed October 5, 2026) |
| Storage Method | No description was found on the Rakuten Ichiba product page. The official online shop states that the Amakuchi 500ml should be stored away from direct sunlight, and that the shiro-dashi 360ml (named “Shoyu Shokunin Jiman no Shiro-dashi” [醤油職人自慢の白だし] on the official site) should be stored at room temperature away from direct sunlight. We cannot confirm whether this is the same labeling as the Rakuten Ichiba productSource: product pages on the Hoshisan official online shop, hoshisan.jp (viewed October 5, 2026) |
| Best-Before Date | No description was found on the Rakuten Ichiba product page. The official online shop states 1.5 years for the Amakuchi 500ml and 1 year for the shiro-dashi 360ml (“Shoyu Shokunin Jiman no Shiro-dashi”). We cannot confirm whether this is the same labeling as the Rakuten Ichiba product. Precautions after opening: not confirmedSource: product pages on the Hoshisan official online shop, hoshisan.jp (viewed October 5, 2026) |
| Raw Material Origin | not confirmed(It is not listed on the Rakuten Ichiba product page, and no origin of the ingredients was found in the ingredients field on the official online shop either)Source: Rakuten Ichiba product page / Hoshisan official online shop (viewed October 5, 2026) |
| Place of Processing | not confirmed(No place of processing was found on the Rakuten Ichiba product page. The official website lists Kumamoto City, Kumamoto Prefecture as the manufacturer’s location, but this is not a manufacturing-site label)Source: Rakuten Ichiba product page / Hoshisan official website (viewed October 5, 2026) |
| State / How to Eat (Whether Cooking Is Required) | We found no guidance from the seller on whether heating is required on the Rakuten Ichiba product page. The product description says the Amakuchi soy sauce can be used to season dishes such as egg on rice, cold tofu, simmered dishes, and grilled rice ballsSource: product description on the Rakuten Ichiba product page (viewed October 5, 2026) |
| Shipping | The product description mentions delivery by parcel service, but the same text also includes shipping information for other products, so we cannot confirm that it refers to this product. Temperature zone and estimated shipping time: not confirmedSource: product description on the Rakuten Ichiba product page (viewed October 5, 2026) |
| Manufacturer | ホシサン株式会社 (as stated on the official website). The Rakuten Ichiba product page has no separate listing of manufacturer or seller, and the seller’s labeling is not confirmedSource: Hoshisan official website (viewed October 5, 2026) / Rakuten Ichiba product page |
| Shop | みそ・醤油 醸造元 ホシサン (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
No ingredient names or allergen labeling were found on the Rakuten Ichiba product page. The Rakuten Ichiba product name carries the shop’s label “保存料不使用” (no preservatives). The Rakuten Ichiba product page does not show ingredient labeling that backs up this label (we cannot confirm whether the ingredient labeling on the official online shop below is the same as that of the Rakuten Ichiba product).
The product pages on the official online shop show the following ingredient labeling. We cannot confirm whether it is the same labeling as the Rakuten Ichiba product. On the official site the shiro-dashi is named “Shoyu Shokunin Jiman no Shiro-dashi” (醤油職人自慢の白だし), and we cannot confirm whether it is the same product as the “Tokusen Shiro-dashi” (特選白だし) on Rakuten Ichiba.
- Amakuchi 500ml: amino acid solution (made in Japan), salt, defatted processed soybeans, wheat, sugar, high-fructose glucose syrup / alcohol, seasoning (amino acids, etc.), caramel color, sweeteners (stevia, licorice), V.B1
- Shiro-dashi 360ml (named “Shoyu Shokunin Jiman no Shiro-dashi” [醤油職人自慢の白だし] on the official site): usukuchi soy sauce (contains soybeans and wheat, made in Japan), salt, sugar, bonito flake extract, fermented seasoning, flavored seasoning liquid (sugar, salt, fermented seasoning, bonito flakes, kelp, dried shiitake mushrooms, bonito extract), amino acid solution, dried sardine extract / seasoning (amino acids, etc.), alcohol, sweeteners (stevia, licorice), V.B1
Source: product pages on the Hoshisan official online shop, hoshisan.jp (viewed October 5, 2026)
From the ingredients field on the official site, it can be read that the Amakuchi contains soybeans and wheat, and that the usukuchi soy sauce in the shiro-dashi contains soybeans and wheat. A separate allergen labeling field is not confirmed. If you have allergies, please be sure to check the product page and the product packaging when you buy.
Reference: Consumer Affairs Agency, Japan, “About Allergen Labeling” (accessed October 5, 2026)
Five Things to Check Before Buying
| What to Check | For This Product | Basis |
|---|---|---|
| 1. Amount and Number of Servings | A set of 2 bottles: Amakuchi soy sauce 500mL + shiro-dashi 360mL. A guideline for the number of servings does not apply because these are seasonings | Rakuten Ichiba product name and product description |
| 2. Storage Method and Shelf Life | Not listed on the Rakuten Ichiba product page. The official online shop states a best-before date of 1.5 years for the Amakuchi 500ml and 1 year for the shiro-dashi 360ml (named “Shoyu Shokunin Jiman no Shiro-dashi” on the official site). We cannot confirm whether this is the same labeling as the Rakuten Ichiba product | Hoshisan official online shop (viewed October 5, 2026) |
| 3. Ingredients and Allergen Labeling | Not listed on the Rakuten Ichiba product page. The ingredients field on the official online shop lists soybeans and wheat (we cannot confirm whether this is the same labeling as the Rakuten Ichiba product). A separate allergen field: not confirmed | Hoshisan official online shop (viewed October 5, 2026) |
| 4. Suitable as a Gift | No indication of noshi, packaging, or message card support was found on the product page | Rakuten Ichiba product page (viewed October 5, 2026) |
| 5. Review Trends | Rakuten Ichiba’s rating is 4.64 out of 5 (690 reviews, retrieved October 5, 2026). The following is the trend from reading the first 50 reviews in the default sort order, plus the 1 review filtered to 1★ and the 10 reviews filtered to 2★; the posts date from March 2015 to August 2026, and the latest post is from August 2026. This trend may not reflect the product’s current state. Many comments praise the wide range of uses and how easy the shiro-dashi is to use, while some note that the sweetness did not suit their taste | Rakuten customer reviews (viewed October 5, 2026) |
Suitable as a Gift?
In the gift-related fields of the Rakuten Ichiba product page, we found no indication of noshi, packaging, or message card support. The product name and product description also contain nothing aimed at gift-giving. We could not confirm the types of noshi inscription, packaging such as a gift box, or whether name printing is available (Source: Rakuten Ichiba product page, viewed October 5, 2026).
If you are considering it as a gift, checking the following points on the product page before purchasing can help avoid misunderstandings.
- Whether noshi and packaging are supported (not listed on the product page)
- Whether a message card can be added (not listed on the product page)
- Whether the recipient is used to using Kyushu-style sweet soy sauce or shiro-dashi
What Public Reviews Say
Below is a summary of the product reviews on Rakuten Ichiba, organized by theme. The rating figures are as of the time we viewed them and may change afterward.
| Site | Rating | Reviews | Viewed |
|---|---|---|---|
| Rakuten customer reviews (product page) | 4.64 / 5 | 690 | October 5, 2026 |
Rating breakdown: 5★ 495 / 4★ 152 / 3★ 32 / 2★ 10 / 1★ 1 (as shown on Rakuten Ichiba, viewed October 5, 2026)
What we read: the first 50 reviews in the default sort order (posted March 2015 to August 2026; latest August 2026), the 1 review filtered to 1★ (posted May 2020), and the 10 reviews filtered to 2★ (posted April 2015 to March 2018), 61 in total. These are trends within what we read and may not reflect the product’s current condition.
What Reviewers Praise
Mellow flavor that is not too sweet
11 of the 50 reviews in the default sort order said it was not too sweet, mellow, and rich in depth (3 of them from the past two years).
Works with a wide range of dishes
16 posts said it can be used with a variety of dishes such as sashimi, egg on rice, simmered dishes, and cold tofu (4 of them from the past two years).
Ease of use of the shiro-dashi
17 of the 50 posts mentioned the flavor or ease of use of the shiro-dashi (5 of them from the past two years). Some describe using it in everyday cooking such as rolled omelet and miso soup.
Repeat purchases and ordering in
21 of the 50 posts mentioned repeat purchases or keeping a stock (9 of them from the past two years). 5 posts also say they order it because they cannot buy Kyushu-style sweet soy sauce nearby.
Source: Rakuten customer reviews (viewed October 5, 2026)
What Reviewers Note
Sweetness did not suit their taste
7 of the 10 reviews at 2★ wrote that it was too sweet or had a distinctive taste (4 reviews), or that it was not as sweet as expected (3 reviews). All were posted between 2015 and 2018, and none are from the past two years.
How to check: A note on sweetness preferences is also given in the “Who It Suits / Who Should Be Careful” section of this article.
Impression of the amount
3 posts wrote that the amount was smaller than expected, or that they thought it was a different size from the thumbnail photo in the list (2 of the 50 in the default sort order, 1 of the 10 at 2★; 1 of them from the past two years).
How to check: The amount is stated in the “Amount” row of “Basic Information” in this article as a set of 2 bottles, Amakuchi soy sauce 500mL and shiro-dashi 360mL.
Source: Rakuten customer reviews (viewed October 5, 2026)
Who It Suits / Who Should Be Careful
Who It Suits
- Looking for a Kyushu-style sweet soy sauce (as described in the shop’s product description)
- Want to try both the Amakuchi soy sauce and the shiro-dashi as a 2-bottle set
- Looking for a soy sauce to use on sashimi, egg on rice, simmered dishes, cold tofu, and the like (as described in the shop’s product description)
Who Should Be Careful
- Opinions on sweet soy sauce are divided (7 of the 10 reviews at 2★ mention the sweetness)
- Have an allergy to soybeans or wheat (listed in the ingredients field on the official site; we cannot confirm whether it is the same labeling as the Rakuten Ichiba product)
- Want to use it as a gift with noshi or packaging (no indication of support was found)
- Want to check the ingredients and best-before date on the Rakuten Ichiba product page (no listing was found)
Prices, stock, shipping fees, and delivery dates are subject to change. This article’s information-as-of date is October 5, 2026. Please be sure to check the listing at the link before purchasing.
Amazon has items from the same manufacturer in other sizes (1L × 2 bottles, 1L × 3 bottles) (checked September 29, 2026). Because their amounts differ from the 500mL + 360mL set in this article, we have not linked to them. We could not find this shop’s product on Yahoo! Shopping.
This article contains affiliate links (advertising). Editorial Policy
Summary
- The amount is a set of 2 bottles, Amakuchi soy sauce 500mL + shiro-dashi 360mL, and there are no selectable sizes
- The Rakuten Ichiba product page has no listing of storage method, best-before date, or ingredients, and we cannot confirm that the official online shop’s labeling is the same as the Rakuten product (the official name of the shiro-dashi is different)
- No indication of noshi, packaging, or message card support was found. Reviews often praise the wide range of uses and the shiro-dashi, while opinions on the sweetness are divided
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 5, 2026 / Sources: Rakuten Ichiba “みそ・醤油 醸造元 ホシサン” product page, Rakuten customer reviews, Hoshisan official online shop (hoshisan.jp), Hoshisan official website, Consumer Affairs Agency, Japan, “About Allergen Labeling”
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