Soak the plums in light salt water for half an hour, then rinse them and add water to the pot. After the water boils, add the plums and heat for 1-2 minutes. Remove when the skin cracks. Choose a well-lit and ventilated environment, spread the plums evenly on the cloth and dry them until they are completely dry.

1. Soak the plums in light salt water for half an hour, then rinse them and add clean water to the pot.

2. After the water boils, put the plums in and heat for 1-2 minutes. Take them out when the skin of the plums cracks.

3. Choose a well-lit and ventilated environment, and spread the plums evenly on the cloth to dry until they are completely dry.