A chashaku is a specially shaped bamboo spoon for dosing matcha powder and is part of every traditional Japanese tea ceremony. It is carved from bamboo and bent into its characteristic spoon shape by hand using steam with great patience. Unlike a metal spoon, a bamboo chashaku does not become statically charged. As a result, the matcha powder glides almost completely from the spoon into the matcha bowl. As long as the bamboo spoon doesn't get wet, it can be easily wiped off with a clean and dry cloth after use. However, if the chashaku becomes wet and dirty, it should be rinsed under clean running water without detergent, wiped clean with a cotton cloth and then air-dried. This prevents the matcha powder from sticking to the bamboo spoon.