1. First, we wash the cauliflower, cut its leaves and some dirty parts into 5cm, soak them in clear water, and then take them out and drain them for 5 minutes.

2. Then add water and some salt to the pot. After boiling, pour in cauliflower. After 6 minutes, turn off the torch and take it out. Put it in a bamboo sieve and dry it in the sun for two days. Pay attention to take the cauliflower back at night to avoid insect bites and rain.

3. After finally drying, seal it with plastic bags and put it in a cool place.