Kumamoto Shio Tomato (Kumamoto): season, origin and where to buy

Seasonal calendar

Available from winter through about June.

Timing shifts with the weather and conditions in each region.

Official registration details (MAFF)

The registered description as published by the Ministry of Agriculture, Forestry and Fisheries.

Characteristics

Though classed as an odama (large fruit) variety, Kumamoto Shio Tomato fruit sizes are modest (weighing 30-150 g). High in sugars and free amino acids, the fruit is characterized by its sweetness (typical Brix is 8 or higher), thick flesh, and pleasantly firm skin. Because of these properties and its rarity, it is traded at three times or more of the unit price of commonly available odama varieties.

Link with the production area

Growing the tomato on reclaimed land with relatively high soil salinity contributes to its high sugar level because osmosis restricts the plant's absorption of water and nutrients. This limits the area of land it can be grown, however, and also requires close and frequent attention during growth.

Characteristics and link with the area: Ministry of Agriculture, Forestry and Fisheries website (https://www.maff.go.jp/e/policies/intel/gi_act/register/s111.html)

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.

Find on furusato nozei (opens in a new tab)Find online (opens in a new tab)

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

Some shop links on this page are affiliate links; we may earn a commission at no extra cost to you.

Since "shio tomato" is also a generic term, check the label to confirm it comes from the Kumamoto reclaimed lands.

FAQ

Tomatoes grown on salty reclaimed land along the Yatsushiro Sea coast in Kumamoto. Although a large-fruited variety, each tomato weighs only 30 to 150 g, with a sugar content of 8 degrees Brix or more, firm skin, thick flesh and strong sweetness. Suitable fields are limited, making them scarce.

Kumamoto Shio Tomato is produced in Reclaimed land in Yatsushiro City, Hikawa Town (Yatsushiro County) and Uki City, Kumamoto Prefecture.

Kumamoto Shio Tomato is in season (harvested or shipped) in Dec–Jun. Available from winter through about June.

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

Kumamoto Shio Tomato was registered as a Geographical Indication on October 7, 2021 (Registration No. 111). The registered producer group is Yatsushiro GI Brand Promotion AssociationShiranui Shio Tomato Shippers Association.