Biwa: Why Nagasaki Grows Japan's Best Loquats

Biwa, the loquat, is an orange, slightly tart fruit that grows well in Nagasaki's mild, humid climate, and the prefecture has long been one of Japan's largest producers, particularly around the Mogi district near Nagasaki City. The fruit is delicate and doesn't ship or store well, which is part of why it's stayed a relatively regional specialty rather than a nationwide supermarket staple, and why prices for premium biwa can run high even within Japan.

Biwa season is short, typically running from late spring into early summer, so timing matters if you want to try it fresh rather than in processed form — check current availability, since exact dates shift year to year with weather. Outside the fresh-fruit season, you'll find it in jams, juices, and as a flavoring in local sweets and even some liqueurs. Fresh biwa is usually just peeled and eaten plain; the flavor doesn't need much help.