1, blanching method: remove impurities from Toona sinensis buds, and then wash them with clear water. Then pour an appropriate amount of water into the pot, bring it to a boil, and blanch the Toona sinensis buds in boiling water. When all the colors turn green, you can take them out. Usually it takes about two minutes to blanch. The time must not be too long, which will easily affect the taste. Drain the water after taking it out, then bag it and put it in a small fresh-keeping bag. The amount of a bag is equivalent to the amount of a meal, so it will last for a long time and it is more convenient to eat. Just put it in the refrigerator and freeze it. Just take it when you eat.

2. Soak in water: tie the bought Toona sinensis buds with a rope, then trim the roots with scissors, and put the roots into the water. The water depth is about 5 cm, which needs to be soaked for one day and one night. After 24 hours, put it in a fresh-keeping box to prevent a cool and ventilated place, and it can be kept for a week.

3. Salinization method: remove the old leaves of Toona sinensis buds, then wash them with clear water, blanch them with boiling water, then take them out and drain them, then sprinkle some salt and put them in a cool place. You need to blanch it again when you eat it, because there is salt in it.

4. Quick freezing method: This preservation method does not need cleaning. Just dry the fresh Toona sinensis buds in the shade for half a day. After half a day, put it in a fresh-keeping bag, seal it, freeze it in the refrigerator, and eat it directly.

5, sun drying method: be sure to choose sunny, strong sunlight weather, so that the moisture of Toona sinensis buds can volatilize well, it takes about 5 days to sun. Toona sinensis buds will become brittle without water after drying, so they need to be put into a container when stored, and then the container should be sealed. You need to soak it when you eat.