It is processed by the fisherman's direct manufacturing method that does not use any salt or water. Freshly picked oysters from Sanriku are carefully simmered only with the umami extract "Ushio" to confine the original taste of oysters.

塩や水を一切使わない漁師直伝の製法で加工しました。三陸とれたての牡蠣を旨味エキス「潮（うしお）」のみでじっくり煮込みました。