1, buy fresh lotus root first, the quality of fresh lotus root determines the quality of lotus root powder. It is best to bring dirt, because this is the freshest, and the washed ones on the market are usually dug for a long time;

2. Wash the soil on the lotus root, remove the black knots at both ends, and pay attention to the knots after washing to prevent muddy water from entering the lotus root;

3. Slice the lotus root, which is convenient for individuals and families to squeeze with juicer;

4. Beat the thin lotus root into lotus root paste with a juicer. Be careful not to wash after slicing, and put it directly into the juicer to stir and refine it to prevent starch loss;

5. Add water and stir, pour in gauze and filter. Then put the lotus root residue into clear water, stir it, pour it into gauze and filter it again, so that we can get a suspension rich in starch;

6. The nutritional value of lotus root residue after starch filtration is not great, so it should be treated by itself;

7. Put the suspension rich in starch in the shade for two hours, and the white one at the bottom is lotus root starch, and slowly pour the clear water on the upper layer;

8. Put the lotus root starch at the bottom into an iron container and expose it to the sun, and stir it properly during the exposure to prevent tanning;

9. After drying in the sun, high-purity lotus root starch can be preserved for a long time.