4 hours ago, TdeV said:The mushrooms in my fridge do A LOT BETTER inside a paper bag than wrapped in cling plastic.
Actually, I could restate this. Mushrooms in machine-sealed plastic bag from the Chinese market, last just fine over one week. Mushrooms in styrofoam from any of the huge grocery stores, might get mouldy in a week; will definitely get mouldy a few days later. Mushrooms in a plastic bag from the vegetable section of the grocery story will definitely get slimy within a week.
Mushrooms from the grower in a holey plastic container inside a paper bag will last well over two weeks. Eventually, they will get a little dry (chewy) but no mould. I don't know how much this increased storage life has to do with the total storage time (i.e. the other mushrooms may have been shipped long distance before hanging out in my fridge, which would shorten their viability in my fridge).
This is true of strawberries also.