1, the use of boiling water can play the role of ironing noodles. When boiling water is added, high temperature can make the starch in sweet potato flour quickly absorb and expand, forming a lump with strong viscosity, elasticity and toughness.

2. In the process of processing at high temperature, some starch will be moderately degraded and split, and sweet substances such as monosaccharide and disaccharide will be released; Substances can add a sweet taste to the final product.

3. When the briquette is used to make food such as steamed buns, steamed dumplings and pot stickers after cooling or fermentation for a proper time, the finished product can be translucent, chewy and smooth.