Japanese name三方原馬鈴薯
Around Hamamatsu's Mikatahara Plateau, well-drained red soil and long sunshine shape Baron potatoes with pale glossy skins, high starch, sweetness, and a fluffy bite; the spring crop is planted in January and February and harvested from May to August.
Information updated 77 days ago
Mikatahara Bareisho names potatoes grown around the Mikatahara Plateau in Hamamatsu, Shizuoka. In these red-soil fields, a spring crop planted in January and February is harvested from May to August, and the Baron potatoes are known for pale glossy skins, high starch, sweetness, and a fluffy bite that suits early-summer cooking from mid-May into July.
The name Mikatahara Bareisho points to potatoes grown in the area centered on Hamamatsu City's Mikatahara Plateau. The red soil drains well, giving the crop a field setting suited to spring growth. In the wider JA Topia Hamamatsu production area, the average annual temperature is about 15.7 C, annual sunshine reaches about 2,132 hours, winter snow is rare, and the dry Enshu seasonal wind is part of the local climate.
Baron potatoes sit at the center of this product family. Red soil and long sunshine help produce potatoes with high starch and a fluffy texture, while the skin is described as pale and glossy. The same skin matters at the table: when the potatoes are eaten with the skin on, their aroma becomes part of the experience along with sweetness and a powdery bite.
Potato cultivation in the Mikatahara area began in the early Taisho period, when the crop was valued as a relatively stable choice for difficult red-soil fields. After the war, released former military land and incoming settlers helped expand the planted area. In 1953, communities including Mikatahara, Isami, Waji, and Hanakawa began joint cooperative shipping, tying separate fields to a shared production flow.
The spring rhythm is concrete: seed potatoes go into the ground from January to February, and harvest runs from May to August. Because potatoes cannot be grown continuously in the same field, rotation is part of the work. Soil analysis, fertilizer guidance, farm logs, pre-shipment starch checks, dry-weather harvesting, shade drying for at least three days, grading, and inspection all shape the potatoes before they leave the growing area.
The sweetness and fluffy texture make Mikatahara Bareisho well suited to simple powdery boiled potatoes, where the starch shows clearly. The same potatoes are also used for salad, nikujaga, croquettes, and prepared potato-salad products. Skin-on eating adds aroma to the pale glossy surface, giving the potato a sensory link back to the red-soil fields.
Mikatahara Bareisho is easiest to understand through concrete details: Hamamatsu's plateau fields, red soil with good drainage, January-to-February planting, May-to-August harvest, shade drying for three or more days, and cooperative shipping that began in 1953. On the table, those details become powdery boiled potatoes, salad, nikujaga, croquettes, and a pale-skinned Baron potato with sweetness and a fluffy bite.
Compiled from public records and official sources; see the recognition links below. Details may change over time.
Where this selection is officially registered, designated, or recognized in Japan.
Regional collective trademark
Registered as a Regional Collective Trademark with the Japan Patent Office.
Sources1
It is written 三方原馬鈴薯 in Japanese. Search Rakuten and other Japanese sites with that spelling — the English name will not return the listings.
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Mikatahara potatoes is a regional foods from Shizuoka. We compile its regional connection and characteristics against official registries, local sources, and live Rakuten listings.
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