A Junmaï sake is defined as a sake with no addition of distilled alcohol at the end of fermentation (the literal translation would be: Jun=pure, maï=rice). Junmaï are therefore the pure result of fermentation of rice by yeasts. As a general rule, the rice used is polished to a minimum of 70%, but there is no rule imposed.
Our advice : Choose a Junmaï if you're looking for a rather rich and expressive sake, a sake that's easy to drink. To serve all along the meal and, why not, at different temperatures, cool, room temperature, or as a hot sake.