The sweet potato specialty store "Lapoppo" sells summer-only "Chilled Sweet Potatoes" and "Kirishima Beni Kagura's Chilled Sweet Potatoes".
A cold sweet potato that you can enjoy in the summer using the original brand sweet potato variety "Kirishima Beni Kagura". By aging and storing Lapoppo's original sweet potatoes, you can enjoy the rich sweetness that melts even when cooled.
Kirishima Beni Kagura is a sweet potato grown on a directly managed farm in the Miyakonojo Basin, Miyazaki Prefecture. A red-skinned variety that is moist and soft and has a high sugar content. Roasted sweet potatoes have a sugar content of 30 degrees or more, which makes them sweeter than fruits such as strawberries, apples, and grapes.
After harvesting, it is aged in a storage room with thorough temperature and humidity, and then slowly baked in a special far-infrared oven to make delicious "sweet potatoes" even when cooled.
Available stores are Oimo-san's Lapoppo, Lapoppo Farm stores, and Lapoppo official online store. The price is 100g (3.53oz) and sold by weight from 180 yen (excluding tax). It looks good as a souvenir as well as a family snack.