2. Then put the flour into the microwave oven, and microwave at high heat for 2 minutes, 40 seconds to 3 minutes, depending on the power of the microwave oven, as shown in the figure.
3. Take it out of the microwave oven and cut the flour with a small spoon to make it cool faster and facilitate sieving later, as shown below.
4. Next, let it cool completely. Flour caking can be screened by pressing with a spoon, as shown in the figure.
5. Finally, after screening, put it in a fresh-keeping box and seal it, so that the low powder is finished, as shown below.