Preparation materials: 5 mustard greens, 1000 ml of boiling water

Steps:

1. Wash the mustard greens and put them on the balcony to dry.

2. Boil water.

3. Blanch the vegetables with boiling water.

4. When the color becomes greener, take it out and put it in a bottle.

5. The bottles must be cleaned and dried in advance. The bottles must not be stained with oil.

6. After filling the bottle, pour the water used to scald the vegetables into the bottle, and then find something hard and heavy to press on top of the vegetables to ensure that the vegetables are completely soaked in the water.

It can be eaten after 7 or 5 days.