For optimum shelf life, mushrooms should be stored in temperatures between 2 - 4 Deg celcius. Optimum humidity -- 85-90% -- also helps maintain quality and shelf life. Once removed from their original packing, mushrooms should be stored in paper bags.
Do not store them in plastic wrap, plastic bags or airtight containers. This will hasten their decay. Do not store near pungent items as mushrooms may absorb strong odors. Do not stack heavy items on top of mushroom containers. Wipe gently with damp cloth or soft brush to remove dirt, trim stems if dry. Do not wash before storage.
When ready to use, quickly rinse in cool water; drain. Shake gently to remove excess water. Do not soak mushrooms because they readily absorb water which speeds up deterioration. Freezing Mushrooms: Fresh mushrooms don't freeze well. But if it's really necessary to freeze them, first saute in butter or oil or in a non-stick skillet without fat; cool slightly, then freeze in an air tight container up to one month.
Fresh mushrooms should be firm and have a fresh smell. Gulf Fresh mushrooms are packed using a special mushroom film. This film allows the mushrooms to breathe thus keeping them fresh for longer. Storage Temperature: 2-4 Deg Celsius Estimated Shelf life in refrigerator: 5-14 days at 1-4 Deg Celsius (Varies for different mushrooms) .
Store fresh mushrooms the right way, and they'll last up to a week. Here's how:
Place whole, unwashed mushrooms in a brown paper bag, and fold the top of the bag over. Then, stick the bag in the main compartment of your refrigerator.
The bag absorbs excess moisture from the mushrooms, so they don't get soggy or moldy.