Kagawa Obarabeniwase Mikan

Kagawa Obarabeniwase Mikan is a unique citrus fruit native to Kagawa Prefecture in Japan, protected by a geographical indication (GI). Characterized by its bright deep red peel, this fruit is known as the variety among approximately 100 unshu mikan cultivars grown in Japan with the reddest peel.

Origin and Development

The origin of the Obarabeniwase variety dates back to 1973, when it was accidentally discovered in Sakaide City, Kagawa Prefecture, as a “bud mutation” — a spontaneous genetic change in a specific branch of a plant. Local growers undertook extensive efforts to propagate this mutation through grafting, ensuring the variety became uniquely associated with Kagawa Prefecture. As a result of these efforts, the “Kagawa Obarabeniwase Mikan” was officially registered in Japan’s national plant variety registry in 1993, and a dedicated association was established to promote its production.

Production Area and Conditions

The fruit is produced exclusively in Kagawa Prefecture, Japan. This region is well suited for mikan cultivation due to its low rainfall and prolonged exposure to sunlight from summer through autumn. Thanks to these favorable conditions, high-quality mikan has been cultivated in the area since ancient times. Producers carefully manage growing conditions in each orchard and follow expert recommendations on cultivation practices to ensure consistent sweetness and acidity across all fruits.

Production and Quality Control

The production of Kagawa Obarabeniwase Mikan strictly follows original cultivation control guidelines from planting to harvest. A local technical advisor visits each orchard to provide tailored advice on optimal cultivation practices. Rigorous quality control measures are applied, and only fruits with excellent eating quality are distributed. In particular, fruits grown in greenhouses and harvested during summer months command premium prices as “red and sweet mikan” available outside the regular unshu mikan season. The fruits are shipped according to established transportation standards and are also exported today.