Tapioca flour is the name of a kind of starch, also known as Thai cornstarch. Cassava flour is a starch extracted from the roots of a tropical plant belonging to the Acer family, the same family as castor, rubber, and Jatropha. After it is cooked with water and heated, it will become transparent and have an elastic texture.

Tapioca starch can be used to produce alcohol, fructose, glucose, maltose, monosodium glutamate, beer, bread, biscuits, shrimp crackers, vermicelli, sauces, and chemical products such as plastic fibers, plastic films, resins, coatings, adhesives, etc.

Flour is a powder ground from wheat. According to the protein content in flour, it can be divided into high-gluten flour, medium-gluten flour, low-gluten flour and gluten-free flour. Flour is a staple food in much of northern China. There are many kinds of foods made from flour, with various styles and different flavors.