1. Pick the yellow leaves and rotten leaves on the spinach, and leave the red roots. Wash and drain the water.

2. Boil a large pot of boiling water. After the water boils, put the washed spinach in.

3. After the water in the pot boils again, simmer for 1 min and take out the spinach.

4. control the excess water, let it cool slightly, and hang the spinach on the shelf, leaving a little gap between the two trees.

5. Place the shelf in a sunny, ventilated and dry place until the spinach is completely dried, and the dry weather in the north is about 3-4 days.

6. Dry spinach thoroughly, put it in a sealed bag, and don't get wet.