You will be harvesting a lot of mushrooms, so unless you're going to be consuming them all within the week, it is best for you to dry them. Drying your mushrooms takes out all the moisture, so they do not spoil and begin rotting. If you want to keep your mushrooms fresh and edible for a long time, then make sure you dry them until they are cracker dry in a dehydrator. Place silica packets in whatever container you store them in to prevent any moisture from forming.