[header] How to store dried mushrooms [title] Choose an airtight container. [step] Storage containers that work well for dried mushrooms are plastic resealable bags and glass canning jars (such as mason jars). The glass jars should have tight fitting, screw-on lids. 
[substeps] If you are using resealable plastic bags, make sure that they are designed specifically for freezer use, rather than thinner sandwich bags. Because dried mushrooms will not be expanding in the freezer (as liquids will do) mason jars are safe to use for freezer storage.