I think that sealing them in a plastic bag doesn't allow moisture to escape, totes don't seal as tight.
I wonder if the cardboard used for fabric bolts are acid free? Most are only stored on these a year or two in fabric stores, and maybe not meant for longer term like in our stashes :roll: the same with being wrapped in plastic awaiting shipping...
I have wondered too how much the different climates play a part in storing our stash and having bad experiences... I have not seen any silverfish/other bugs in my home, and the humidity is also pretty low in my home too. Can't say the same about other places where I have lived :roll: