Hmmm -refridgerator - maybe 2 to 5 degrees - it will certainly slow them down.

I have battled wool eating beasties for a long time and lost some of my best knitted and unknitted wool to them.

A batch of yarn for charity knitting, received a couple of decades ago, also brought me the varigated carpet beetle, which has devastated the good carpets in the house and drilled holes down into cones of some really expensive knitting yarns.

If the eggs or grubs are inside several layers of cloth it would take a very severe steaming to reach them, but the cold of a freezer penetrates deep, eventually, and they DIE!!!

Anne the wool beastie murderer - even the babies are not safe!!!!!