Preservation method of rice dumpling leaves:

1. Cold water immersion preservation method: This method can only be preserved for two weeks, and it will not work after two weeks. Put the fresh rice dumpling leaves into a large basin, add a full basin of cold water, change it twice a day, and put it in a cool place.

2. Refrigerator storage method: Put the rice dumpling leaves into a safety bag or a clean plastic bag, put them directly into the freezer layer of the refrigerator and freeze them. Take them out and put them in clean water to defrost them before use. .

3. Store in a cool and ventilated place: Tie up fresh rice dumpling leaves in handfuls, then hang them up and place them in a cool and ventilated place. Make sure not to get wet or exposed to the sun, usually for one week. It can also be kept fresh.

4. Vacuum packaging: Store the fresh rice dumpling leaves directly in a vacuum bag, so you can store them for as long as you like. Of course, you can also boil fresh rice dumpling leaves in a pot, dry them out and hang them to dry. They can be used within a year.

Extended information:

Zongzi leaves are green and will gradually turn yellow-green or yellow-brown after being left for a period of time. Experienced old people will soak the rice dumpling leaves in water to preserve them, or hang them to dry, and then soak them in water to recover when they are eaten. However, neither of these two methods can keep the rice dumpling leaves green all the time. In order to ensure the "saleability" of the rice dumplings, some manufacturers of rice dumplings add industrial copper sulfate and industrial copper chloride to the water when soaking the rice dumpling leaves, so that the rice dumpling leaves can achieve the "returning green" effect.

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