What is a chasen, or matcha tea whisk?
A matcha whisk, called chasen in Japanese, is a bamboo utensil used to prepare matcha, and is traditionally used during Japanese tea ceremonies.
It has a large number of strands, often between 60 and 100 finely cut strands, which facilitate the emulsification of hot water with the matcha powder and promote the formation of a light and creamy froth on the surface of matcha.