1, fresh fern collected, want to extend its shelf life, you can put it in a clean pot with, high temperature cooking and then add pure water to bag, direct sealing and preservation, so that fresh fern to keep fresh, and can be preserved for a longer period of time does not deteriorate.

2, fresh fern in a vacuum environment, but also not easy to deteriorate, you can usually put it into a sealed plastic bag, and then all the air out of the bag, so that it presents a vacuum state, so you can also let the vegetables to keep fresh, and can be in the 3 to 5 months do not deteriorate. If you can keep the fern in the refrigerator in the freezer, it will make its freshness period become longer.

3, fresh fiddleheads can also be dried and preserved, so that people can eat delicious fiddleheads all year round. In the preservation of the time, you can put the fresh fern in the sun to dry, and so it air-dried and put away in a dry and cool environment, can be preserved for a few years without deterioration, eat the dry fern with water to soak soft can be.

4, fresh fiddleheads with salt cured after preservation is not easy to deteriorate, in the curing time need to be seven vegetables, three salt ratio to pickle, pickled after taking out the fiddleheads, the surface of the salt removed, and then soaked in calcium chloride solution, soak for about 20 minutes, take out after the sterilization process, and then directly bagged and sealed preservation, so that the fiddleheads can remain fresh, and in the six to eight months within the will not deteriorate.