1. Store in water: Use scissors to cut off the stems of the lychees, then find a plastic bag, put the processed lychees into the plastic bag, seal the opening of the plastic bag, and then put Place plastic bags in water for storage. If the ambient temperature is too high, we also need to change the water. Just change the water three to four times a day. In this way, lychees can be preserved for three to five days.

2. Store in the refrigerator: first remove the branches and leaves on the surface of the lychee, then use a watering can to spray a layer of water droplets on the surface of the lychee, and then store the lychee in the fresh-keeping layer of the refrigerator. If we want the lychees to be stored for a longer period of time, we can wrap the lychees with newspapers, then wrap the outer layer with a plastic bag, and then put the lychees into the freezer for storage. In this way, the lychees can be stored for about 15 days. .

3. Prepare solution for soaking: There was no such thing as chemistry in ancient times, so now we can use chemical methods to preserve lychees and prepare an appropriate amount of 2% sodium aluminate solution.