ザキさんFusano Kankiku剣愛山50 Chronicle純米大吟醸原酒無濾過Kankiku MeijoChiba2025-09-23T07:59:06.285Z9/15/2025家飲み部29ザキさんI don't know if it's fire-retardant. I think the sharpness increases as the temperature rises. I drink it cold, and from the second sip. I don't feel the sweetness anymore. It is a sake that makes you want to drink it!Japanese>English