It is made from foaming dried sea cucumbers. It can be stored in the freezer for about two months and can be eaten. However, it is generally not recommended that you store it for such a long time. It is best to eat it within a week. You can use less of it next time. Make a point.
If the sea cucumber is hard, it probably means you didn’t cook it well in the first place. You can try cooking the hard ones again.
Remove the astringency of sea cucumbers: blanch the prepared sea cucumbers with hot water, then put them into a pot with onions, ginger and cooking wine, and cook for a while. It only takes about 1-2 minutes