Nihonshu: A Complete Guide to Japanese Sake

Sake — nihonshu in Japanese — is a fermented rice beverage produced in Japan for at least two thousand years. It is not wine, not beer, not spirits, though it shares characteristics with each. Understanding it slightly changes what you drink for the rest of your life.

What Sake Is

Sake is brewed from four ingredients: rice, water, koji mold, and yeast. The koji mold converts the rice starches into sugars; the yeast converts those sugars into alcohol. The process, called multiple parallel fermentation, is unique to sake and produces an alcohol content of 14–16% — higher than wine, lower than spirits.

The water is critical. Japan’s water tends toward the soft end of the mineral spectrum, and different water sources produce different sake characters. The hard water of Nada (Kobe) traditionally produces bold, dry sake; the soft water of Fushimi (Kyoto) produces softer, more delicate expressions.

The Grade System

Sake grades are defined by the degree to which the rice has been polished before brewing. More polishing removes the outer layers of the grain, producing a lighter, more aromatic sake.

Junmai (純米): Pure rice sake — no added alcohol. The most direct expression of the rice and water.

Ginjo (吟醸): Rice polished to at least 60% of its original size. Lighter, more fragrant.

Daiginjo (大吟醸): Rice polished to at least 50%. The most refined grade. Light, aromatic, often complex.

Tokubetsu Junmai: “Special” junmai, either more polished or with a specific brewing method noted by the producer.

Honjozo (本醸造): A small amount of distilled alcohol is added during brewing. Lighter than junmai, often more approachable.

How to Read a Label

Japanese sake labels include the producer name, the brand name (often different from the producer), the rice variety used, the water source, the grade, and the nihonshu-do (sake meter value, indicating dryness: positive = drier, negative = sweeter).

For a first approach: find the grade (junmai, ginjo, daiginjo) and the sake meter value. A junmai with a +3 meter value is a good starting point — characterful, dry, food-friendly.

Regional Styles

Niigata: The benchmark for tanrei karakuchi — light-bodied, clean, dry. The style became nationally influential in the 1970s and 80s.

Yamagata: Rich in producers making aromatic, fruity ginjo-style sake from locally developed rice varieties.

Kyoto (Fushimi): Soft water produces elegant, slightly sweet sake. Gekkeikan, Kizakura, and Fushimi’s other breweries.

Hiroshima: Another soft-water region, producing sake of delicacy and complexity. The Saijo district has multiple notable breweries within walking distance.

Akita: Rice-forward, full-bodied sake with a winter-brewing tradition.

Temperature

Sake is served at a wide range of temperatures, each with its own Japanese name. The key points: cold (reishu, 5–10°C) emphasizes freshness and aroma; room temperature (joon, ~20°C) shows structure; warm (nurukan, ~40°C) rounds out the texture and brings rice character forward; hot (atsukan, ~50°C) suits simpler sake and cold weather.

At a good izakaya or sake bar, ask for the recommendation at whatever temperature suits the sake they’re pouring.

What to Order First

If you are new to sake, start with a junmai ginjo — served cold or at room temperature — from a producer you don’t recognize. Ask the bartender or izakaya owner for something from a region you haven’t tried. The answer will be informative and the sake almost certainly will be good.

Then ask for something contrasting. Two glasses at different points on the dryness/sweetness and light/full spectrum gives you more information than ten glasses of similar sake.

Sake and Food

Sake pairs exceptionally well with most Japanese food, which is not a coincidence — it evolved alongside the cuisine. The standard guidance: lighter sake with lighter food, fuller sake with richer food. More usefully: when in doubt, ask the person pouring it.