What defines the style of sake that can have slightly sweet or cloudy characteristics?

The style of sake that is characterized by slightly sweet or cloudy characteristics is Nigori. This type of sake undergoes a process where it is coarsely filtered, leaving some of the rice solids suspended in the liquid. As a result, Nigori tends to have a milky appearance and can exhibit a sweet flavor profile because of the residual sugars and unfermented rice starches. This unique processing method contributes to its distinctive texture and taste, which many find appealing.

Other types of sake, such as Junmai, Ginjō, and Futsū-shu, do not typically exhibit the same sweet or cloudy characteristics. Junmai sake is pure rice sake without added alcohol or sugars, leading to a more straightforward rice flavor without sweetness. Ginjō sake is known for its aromatic qualities and smoother taste, achieved through more careful brewing and polishing of the rice but remains clear. Futsū-shu, or ordinary sake, is a broad category that encompasses various styles but is generally more straightforward, lacking the sweetness and cloudiness that defines Nigori.