This is an egoma oil (えごま油) from OTA OIL (太田油脂), 100g×3 bottles, whose Rakuten Ichiba product name carries the label “北海道産” (Hokkaido-grown). The product page gives the ingredient as “食用えごま油（国産）” (edible egoma oil, produced in Japan) and the origin of the egoma seeds as “日本” (Japan). We sorted the published product information and reviews into five points, including amount, shelf life, ingredient labeling and reviews.
What We Confirmed
- Amount and number of servings
- Storage method and shelf life
- Ingredient and allergen labeling
- Handling notes for the container
- 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 | Hokkaido-Grown Egoma Oil, 100g×3 Bottles, OTA OIL (北海道産 えごまオイル 100g×3本 太田油脂) |
|---|---|
| Name | Edible egoma oil (食用えごま油)Source: Rakuten Ichiba product page (accessed October 14, 2026) |
| Content volume | 100g×3 bottles (Fresh Bottle, フレッシュボトル). This page is for the 3-bottle set only; there is no field for choosing the number of bottlesSource: same as above |
| Storage method | Before opening: store away from direct sunlight, at room temperature, in a dark place. How to store it after opening is not stated on the product page: not confirmedSource: same as above |
| Best-before date | Before opening: 1 year from the manufacturing date. The page says it ships products with at least half (1/2) of that best-before period remainingSource: same as above |
| Country of origin (ingredient) | The ingredient name is stated as “食用えごま油（国産）” (edible egoma oil, produced in Japan), and the origin of the egoma seeds as Japan. The product name and the catch copy carry the label “北海道産” (Hokkaido-grown)Source: same as above |
| Place of processing | Japan (final processing location)Source: same as above |
| Condition / how to eat (whether heating is needed) | Edible oil. Whether it can be used for heated cooking: not confirmed. As a precaution for use, the page advises that oil can smoke or catch fire if overheated, so always turn off the heat when you leaveSource: same as above |
| Notes after opening | The page says the oil passage of the Fresh Bottle (フレッシュボトル) is very narrow, and that if it is left unused for a period after the cap is opened, the remaining oil may thicken and clog it. It cautions that squeezing the container hard while it is clogged can make the oil spurt out. It also states that cloudiness or sediment may appear but is not a sign of deterioration, and advises against using the oil with polystyrene containers (such as instant-noodle cups)Source: same as above |
| Delivery | not confirmed (no delivery temperature range or estimated shipping days are stated) |
| Manufacturer | OTA OIL CO. LTD. (太田油脂株式会社), Okazaki City, Aichi PrefectureSource: same as above |
| Shop | 太田油脂マルタショップ楽天市場店 (Rakuten Ichiba) |
Prices are not listed here because they change. Please check the current price and stock availability at the link above.
Ingredients and Allergen Labeling
The Rakuten Ichiba product page states the ingredient name as “食用えごま油（国産）” (edible egoma oil, produced in Japan). The allergen field states “無” (none) (accessed October 14, 2026). If you have an allergy, ask the shop before buying, or be sure to check the food information label on the product when it arrives.
Reference: Consumer Affairs Agency, Japan, “About Allergen Labeling” (accessed October 14, 2026)
Five Things to Check Before Buying
| What to check | This product | Basis |
|---|---|---|
| 1. Amount / servings | A fixed set of 100g×3 bottles. No number of servings is stated | Rakuten Ichiba product page |
| 2. Storage and shelf life | Before opening: kept away from direct sunlight, at room temperature, in a dark place; best-before date is 1 year from the manufacturing date. How to store it after opening: not confirmed | Rakuten Ichiba product page |
| 3. Ingredients and allergen labeling | The ingredient name is edible egoma oil (produced in Japan). The allergen field states “無” (none) | Rakuten Ichiba product page |
| 4. Suitability as a gift | The product name carries the notice “ギフト包装不可” (gift wrapping not available). No indication of noshi (gift wrapping label) or message card support was found | Rakuten Ichiba product page |
| 5. Review trends | The Rakuten Ichiba rating is 4.68 / 5 (324 reviews). Trends are sorted under “What Public Reviews Say” below (we read 71 reviews; ratings are as of the viewing date and do not necessarily represent the product’s current condition) | Rakuten Minna no Review (accessed October 14, 2026) |
What Public Reviews Say
We sorted the product reviews on Rakuten Ichiba by viewpoint. Ratings are as of the viewing date and change afterward.
| Site | Rating | Count | Viewed |
|---|---|---|---|
| Rakuten Minna no Review (product page) | 4.68 / 5 | 324 | October 14, 2026 |
Rating breakdown: 5★ 241 / 4★ 70 / 3★ 7 / 2★ 3 / 1★ 3 (as shown on Rakuten Ichiba, viewed October 14, 2026)
What we read: the first 58 reviews in Rakuten’s default order (posted February 2019 to September 2026; latest September 2026), plus the 3 reviews filtered to 1★ (posted September 2019 to February 2024), the 3 at 2★ (posted April 2019 to January 2026) and the 7 at 3★ (posted February 2019 to February 2024), 71 in total. These are trends within what we read and may not reflect the product’s current condition.
What Reviewers Praise
Mild and easy to eat
About 11 of the 58 reviews in the default order wrote that it has no strong taste and is easy to eat, or that it goes with any food. As for how they eat it, 8 posts mentioned pouring it over natto and 6 mentioned mixing it into yogurt.
Reassurance that it is made in Japan
About 16 posts gave the fact that the ingredient is produced in Japan as a reason for choosing it or feeling reassured.
Ease of use of the Fresh Bottle
About 13 posts mentioned how handy the container is, such as that it drips little, that the oil comes out to the last drop, and that the bottle is light.
Buying repeatedly
About 17 posts said they buy it again or have kept buying it for a long time.
Source: Rakuten Minna no Review (accessed October 14, 2026)
What Reviewers Note
Comments on price
About 10 or more of the 58 reviews in the default order mentioned price. Most of them were 4★ or 5★ posts. All 3 of the 2★ posts mentioned price, saying they could not see a difference worth the price or felt it was expensive for the small amount.
About the container
2 posts (one at 2★ and one at 3★) mentioned that the container is plastic. The 2★ post called this disappointing, and the 3★ post said it is easy to handle because there is no worry of it breaking. One 3★ post also said they had trouble getting the contents out.
How to check: the notes about the container are summarized in the “Notes after opening” row of Basic Information in this article.
In addition, one 1★ post (November 2020) said that 2 of the 3 bottles had an off taste or smell, and one post in the default order (December 2024) mentioned a faint fishy smell that did not bother them. Both are few in number and cannot be called a trend.
Source: Rakuten Minna no Review (accessed October 14, 2026)
Who It Suits / Who Should Be Careful
Who It Suits
- Want an egoma oil whose ingredient field states it is produced in Japan, in a fixed set of 100g×3 bottles
- Can plan to use it up with the pre-opening best-before date (1 year from the manufacturing date) in mind
- Want to use reviews about its mild taste and the ease of use of the container as input for choosing
Who Should Be Careful
- Want to confirm, before buying, how to store it after opening and whether it can be used for heated cooking (not confirmed)
- Are concerned about the container notice that the oil may thicken and clog if it is left unused for a while after opening
- Are concerned that a fair number of reviews mention price
- Have an allergy and want to confirm before buying (ask the shop, or check the label on the product when it arrives)
Prices, stock, shipping fees, and delivery dates are subject to change. This article’s information-as-of date is October 14, 2026. Please be sure to check the listing at the link before purchasing.
This article contains affiliate links (advertising). Editorial Policy
Summary
- This page is for a fixed set of 100g×3 bottles. The ingredient field states it is produced in Japan, and the product name carries the label “北海道産” (Hokkaido-grown)
- The best-before date is 1 year from the manufacturing date before opening. How to store it after opening and whether it can be used for heated cooking could not be confirmed 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
This article organizes information published on sales sites and review sites. Product information such as amount, storage method, and ingredients may 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 14, 2026 / Sources: Rakuten Ichiba “太田油脂マルタショップ” product page, Rakuten Minna no Review, Consumer Affairs Agency, Japan “About Allergen Labeling”
Comments