The kanji for Ginjo sake is 吟醸酒 and it translates to "delicately brewed sake".
Ginjo sake are brewed at low temperature for a prolonged period with rice, yeast, water and alcohol. The polishing ration for Ginjo sake is 60% or less. Ginjo sake has a characteristic flavor of fruity and lightness, sometimes even complex.
It is advised to only serve Ginjo sake chilled or at room temperature as heating will cause an inbalance with the aroma and taste!