Welcome to Oimo House!

Oimo House specializes in processing sweet potatoes, a specialty of Kagoshima Prefecture in southern Japan.

We process various varieties of sweet potatoes, including Anno-Imo, Beni-Haruka and Satsuma-Imo.

Sweet potatoes are a delicious and highly versatile functional superfood and offer a wide range of health benefits for consumers of all ages.

Commitment to Quality

Harvested sweet potatoes are baked in a custom roasting machine designed and manufactured by our affiliate, Kokuou Giken Kogyo. Continuous roasting raises the sugar content of sweet potatoes. After roasting, the sweet potatoes are then frozen and the natural sweetness is maximized using a cyclic thermic process. Final sweet potato products are packaged by hand. Oimo House products are 100% natural and are free of additives and preservatives and are enjoyed by people of all ages as a healthy snack.

Sweet Potato Varieties

Oimo House uses locally grown sweet potatoes produced by trusted growers in Kagoshima Prefecture.

安納芋

Anno-Imo

Anno-Imo has a lovely rounded shape and a sticky, creamy texture that overflows with honey flavors. The mild climate and mineral-rich soil of Tanegashima Island, the growing area, are ideal for growing Anno-Imo sweet potatoes.

Beni-Haruka

Beni-Haruka has a smooth, creamy texture and a sweetness comparable to sweets, as if honey has been added. Oimo House only uses sweet potatoes produced by local producers in Kagoshima Prefecture, in locations such as Akune, Kanoya and Ibusuki.

紅はるか

Product Lineup

Oimo House uses locally grown sweet potatoes produced by trusted growers in Kagoshima Prefecture.We use proprietary in-house roasting technology to ripen the sweet potatoes and extract as much of their natural sweetness as possible.We are committed to producing healthy products that are free of additives and preservatives.

焼き芋

Yaki-Imo

Carefully selected sweet potatoes are roasted to perfection using proprietary in-house roasting technology. The sticky-sweet baked sweet potato is free of additives and preservatives and is enjoyed by people of all ages as a healthy snack.

干し芋

Hoshi-Imo

By adjusting the steaming and drying process in detail according to the condition of the sweet potatoes and humidity, we achieve a uniquely soft, sticky and sweet result.

Hoshi-Imo products come peeled and can be eaten right away!

干し芋

Product Innovation

Oimo House strives to diversify its product lineup with new innovative products to support a healthy lifestyle. Our 'Kawa-Icha' tea is one example of a newly developed product that takes advantage of the nutritional versatility of Kagoshima Prefecture's sweet potatoes.