Esters

Esters are compounds formed when an alcohol and an acid combine, and they play an important role in sake. Esters produced by yeast during fermentation give sake fruity aromas and rich flavors, adding to the appeal of drinking it. Examples include ethyl acetate, which recalls the scent of fruit, and isoamyl acetate, which has a banana-like aroma. These esters are essential in creating the complexity of sake's taste and aroma, and they are an important factor in sake brewing. The types and amounts of esters differ depending on the type of sake and the brewing method, resulting in sake with its own distinct character.