Before sake bottles are opened ... Sake is typically a clear or light wheat shade, so if it's turned a darker yellow hue, that could indicate spoilage. Then, there's taste. Sake can come in ...

Asahi Shuzo Co. in Iwakuni, Yamaguchi Prefecture, launched “junmai daiginjo,” a bottle of the highest quality of sake, at the new Dassai Blue Sake Brewery under the Dassai Blue line.