If the Hawthorn has been cut open, if you want to preserve it, you need to put it in salt water, so it won't turn yellow in a short time. You can also cut it and put it in the sun, so that the water in it evaporates as soon as possible, which is also a method of preservation.
1. Fine sand preservation: clean the hawthorn, find a suitable container, put it into a layer of fine sand, then put the Hawthorn into it, spread a layer of fine sand, and seal the lid.
2. Cold storage: clean hawthorn with water, put it into plastic bag and tie it tightly, and finally put it into refrigerator for cold storage.
3. Preservation of preservative film: put Hawthorn into the preservative film, put the air inside as clean as possible, and seal the mouth of the bag to keep fresh.