1. Tapioca flour is the key material for making pearls. It cannot be replaced by other starches, because only pearls made with tapioca flour will be chewy and chewy

2. When the brown sugar water is boiled, do not turn off the heat. Use a low fire to maintain the temperature, so as to better gelatinize the cassava flour. Otherwise, the temperature of the liquid decreases slightly, which may cause non-Newtonian liquids.

3. If you want to make black pearls, then when you boil the pearls, put a few pieces of brown sugar into the pot, so that the boiled pearls will be black.

4. The raw pearl embryos should be frozen and sealed in the refrigerator before they are boiled. They can be stored for 1 month, but the boiled pearls must be eaten on the same day, so it is not easy to refrigerate the pearls. Storage, it will easily lead to hard taste.