Processing methods are roughly divided into steam and dry methods called Ise hoshiki (a traditional steaming method) in which dried algae is rehydrated and then steamed and dried, and boiling and drying methods.
加工の方法は、主に伊勢方式と呼ばれる乾燥原藻を水戻しして蒸乾する蒸乾法と、煮乾法に大別される。