Use warm water and accelerate stirring. It can make the acorn starch precipitate quickly. Starch and water mixing is slow, you can increase the temperature of the water, do not use boiling water, the temperature of about 40 degrees Celsius of warm water can be, will accelerate the dissolution of starch. After the starch is put into the water, it is recommended to use chopsticks or a spoon to stir quickly, which can break up the starch block, while allowing the starch to fully contact the water, to achieve the purpose of making the starch precipitate quickly.