What makes Tsunagi Kohaku Onion different from regular onions?

It is characterized by its overwhelming sweetness and lack of spiciness. Unlike regular onions, which are usually soaked in water to remove spiciness, this variety can be eaten raw and delicious without such treatment.

How long can I purchase it?

It is available for a limited time, only about 2 months during the spring harvest season. Sales will end once the stock runs out.

What are the benefits of not soaking it in water?

Not soaking it in water prevents the loss of beneficial components like 'blood-thinning' (alliin) and 'beauty skin' (quercetin), allowing for more efficient intake.

[From Kumamoto - Limited Spring Taste] "Tsunagi Kohaku Onions," Rare Sweet New Onions Edible Without Soaking, Now on Sale

Published Apr 1, 2026 8:08 PM ・ Updated Jun 13, 2026 11:46 PM ・ 3 min read ・ Source: PR TIMES

Imikoto Marche, a food online shop operated by TeN Co., Ltd., has started selling the rare brand new onion 'Tsunagi Kohaku Onion' from Tsunagi Town, Kumamoto. Harvested only during two months in spring, it features extreme sweetness and can be eaten raw without soaking.

TeN Co., Ltd. (Headquarters: Shibuya-ku, Tokyo; CEO: Yoshinori Hirose) has launched the limited-time sale of 'Tsunagi Kohaku Onion,' a rare brand of new onion from Tsunagi Town, Kumamoto, through its online food shop 'Imikoto Marche.'

This product, which can only be harvested during a brief two-month window in spring, is characterized by its overwhelming sweetness and juiciness, to the extent that it can be eaten raw without being soaked in water. Furthermore, by not soaking it, consumers can ingest 'blood-thinning components' and 'skin-beautifying components' that are often lost during the cooking process of regular onions. It is truly a masterpiece that can be called an 'edible supplement.'

### Characteristics of Tsunagi Kohaku Onion - Incredibly low pungency - Exceptional sweetness even among new onions - Thick-fleshed with high water content and a juicy texture - Can be eaten without soaking, making it easy to ingest nutrients without loss - Only available for circulation for two months in spring

### Product Page - Tsunagi Kohaku Onion (5kg): https://cart.imikoto-marche.jp/products/508?ad_code=icr_prt - Morning-picked Tsunagi Kohaku Onion (5kg): https://cart.imikoto-marche.jp/products/509?ad_code=icr_prt

Keywords: New Onion, Farm Direct Gourmet, Time-saving Recipe, Kumamoto Prefecture, Spring Vegetables, Blood Thinning, Morning-picked, Direct from Origin, SDGs, Regional Revitalization

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Source: PR TIMES
Category: New Product

[From Kumamoto - Limited Spring Taste] "Tsunagi Kohaku Onions," Rare Sweet New Onions Edible Without Soaking, Now on Sale

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