Tapioca flour: Tapioca flour is dried and processed from the tuber of a maple plant, which belongs to the same genus as rubber, into a powder product with high starch content, which is called tapioca starch in many places.

Sweet potato flour: sweet potato flour is also known as groundnut flour, which comes from our common groundnut, groundnut is a kind of potato plant, this kind of flour also contains high starch, belongs to a kind of coarse grains.