This oyster is ripe for consumption in two to three years and has a salty, metallic, and slightly creamy taste. The size of the oysters is indicated with numbers from 5 to 0, with 5 being the smallest. This umami oyster is a unique oyster of exceptional quality. The oyster is selected based on the shape of the shell and has a special taste: savory, sweet, creamy, salty, full, and nutty.