Most antique and vintage sake flasks and cups are made out of clay, whether it's delicate porcelain or sturdy stoneware. In general, clay vessels used to pour or consume sake are called shuki. In many restaurants, sake is served in a square wooden vessel known as a masu, which allows the warm, perfume-like flavor of the sake to mix with the wood, often cedar. Clay can also impart flavor to sake, making the choice of the vessel or cup one uses...Continue Reading