GI ZukanJapan's Geographical Indication (GI) Products

Ibonoito (Hand-Stretched Somen)

揖保乃糸(いぼのいと)

Hand-stretched somen noodles from Hyogo, sold under a unified brand named after the Ibo River. The noodles resist going soft after boiling and have a smooth, springy, clean-biting texture. Producers follow methods handed down for about 600 years, including aging in dedicated storehouses called yaku.

Prefectures
Hyogo
Production area
Hyogo Prefecture
Season
Season not confirmed
Registered
August 27, 2024(Reg. No. 154)
Category (as registered)
第5類 農産加工品類 穀物類加工品類(めん類)

Seasonal calendar

As a processed product, it is available year-round; production takes place mainly in winter.

Timing shifts with the weather and conditions in each region.

Official registration details (MAFF)

Characteristics

The noodles do not easily go soft after boiling and have a smooth feel on the tongue with a firm, springy, clean-biting texture. With the largest production volume of hand-stretched somen in Japan, they are widely recognized as a renowned product.

Link with the production area

Against the backdrop of the fertile soil of the Ibo River basin, the production area thrived on growing wheat and milling flour with waterwheels, and high-quality salt from nearby Ako was easy to obtain, so somen has been made here since ancient times. Producers have inherited distinctive methods, including the hand-stretching technique practiced for about 600 years and aging in dedicated storehouses called yaku. In 1894, product inspection and grading under unified standards were introduced to improve quality and reliability, and the name was unified as "Ibonoito," after the Ibo River that flows through the production area.

Characteristics and link with the area: Ministry of Agriculture, Forestry and Fisheries website (https://www.maff.go.jp/j/shokusan/gi_act/register/0154/index.html) The English text is our translation of the Japanese original.

Where to buy

As a rule, only products that meet the registered standard may use a GI name (with exceptions such as prior use). Check for the GI mark and the place of origin to tell it apart from ordinary products with similar names.

These links go to Japanese-language shops; check whether they ship overseas.

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FAQ

Hand-stretched somen noodles from Hyogo, sold under a unified brand named after the Ibo River. The noodles resist going soft after boiling and have a smooth, springy, clean-biting texture. Producers follow methods handed down for about 600 years, including aging in dedicated storehouses called yaku.

Ibonoito (Hand-Stretched Somen) is produced in Hyogo Prefecture.

Look for it via furusato nozei (hometown tax donation) and online shops. Check the GI mark and the place of origin before you buy.

Ibonoito (Hand-Stretched Somen) was registered as a Geographical Indication on August 27, 2024 (Registration No. 154). The registered producer group is 兵庫県手延素麵協同組合.

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