KOJI Did you know, KOJI is a magic mould spore essential to sake production. It generates the enzymes required to break down the rice during fermentation into the building blocks required to create sugar, alcohol, flavour, texture and aroma. At KANPAI make all our own KOJI rice in-house by hand in our custom made koji room (mura). This place smells amazing 🤤♥️🤘🍶 #koji #sake #fermentation #handmade #japan #london