Artist's commentary
Hang in There, Kogasa-san 3876
Of course, even when it's pasteurized, it seems the sake's taste will change if you leave it for a year or so. Even among the refrigerated kinds, some are pasteurized, so it gets kind of complicated. Raw sake is sure to have "raw sake" written on it, but the best way to be sure is to check with the store clerk.
I heard that the fresh-pressed sake that comes out in the fall is also called "hiya-oroshi" grated in the cold, but depending on when it's shipped, it seems it also goes by "natsugoshi-zake" over-summer sake, "aki-dashi ichiban sake" first sake out in autumn, or "banshuu-shishu" late-autumn top sake, which I find very confusing. (^^;)