Sake is brewed (not distilled) but it's not beer either. The process is unique to sake: koji mold (Aspergillus oryzae) converts rice starch into sugar, while yeast simultaneously ferments that sugar into alcohol. This 'multiple parallel fermentation' doesn't exist in any other drink — it allows sake to reach alcohol levels (14–16%) that wouldn't be possible through simple fermentation alone. The result is a beverage that sits between wine and beer in character — the body and complexity of wine, with the cereal backbone of beer. In Japan, sake is as culturally significant as wine in France. It pairs with food more versatilely than perhaps any other beverage and can be served warm, cool, or at room temperature depending on the style.

Sake quality is determined largely by how much the rice is polished (milled) before brewing. Junmai is pure rice sake — no added alcohol, full-bodied, often slightly rustic. Honjozo has a small amount of distilled alcohol added — lighter and more aromatic. Ginjo (rice polished to 60% or less of original size) is more refined, with delicate fruit and floral notes. Daiginjo (polished to 50% or less) is premium — elegant, fragrant, and complex. The smaller the resulting grain, the cleaner and more aromatic the resulting sake. Premium Daiginjo is among the most sophisticated alcoholic beverages in the world.

Depends on the grade. Premium Ginjo and Daiginjo should be chilled (8–12°C) — warming destroys their delicate aromatics. Junmai and Honjozo can be served at any temperature — warming at 40–50°C brings out richness, umami, and rounded sweetness. Room temperature works for most everyday sake. Use a small porcelain cup (ochoko) or small wine glass — the shape concentrates aromatics. Once opened, refrigerate and consume within 1–2 weeks.