What characteristic is common to Koshu sake?

Koshu sake is known for its distinct amber color and pronounced flavor profile, which typically includes sweetness. This type of sake is made from rice that has been aged, often for several years, and this aging process contributes to its unique color and flavor characteristics. The interaction of the sake with oxygen over time can develop complex aromas and a more rounded taste, leading to a richer mouthfeel and a profile that may include notes of caramel, dried fruit, and toffee, all of which contribute to its sweetness.

In contrast, light and fizzy sake would not align with the attributes of Koshu, as this style tends to be much more textured and fuller-bodied. Clear and dry characteristics are usually associated with other styles of sake, which prioritize freshness and crispness rather than the complexity found in aged examples. White wine-like freshness is more representative of younger sakes, which showcase vibrant acidity and light floral or fruity notes, rather than the intensity and depth found in Koshu. Thus, the amber color and sweet profile of Koshu sake distinguish it from other sake types.