1. First of all, choose fresh and undamaged lotus leaves, not those that are tender, so the taste is not rich enough, and the leaves with large, clean and green leaves are better.

2. Remove the petiole of the selected lotus leaf, fold it into a semicircle, and dry it in a cool and ventilated place for later use.

3. Dry the sun-dried lotus leaves, seal them against moisture and store them. When in use, rinse with tap water and soak in warm water until soft.

4. Lotus leaves contain alkaloids such as liensinine, protoliensinine and nuciferine, vitamin C and polysaccharide, which have the functions of clearing away heat and toxic materials, cooling blood and stopping bleeding. Lotus leaves are blue-green, fragrant and often used as raw materials in traditional medicinal diets. Lotus leaf has the effects of clearing heat and promoting diuresis, promoting hair growth and clearing yang, cooling blood and stopping bleeding.