Lucy Makes Mat Soup

Lucy, my scarlet, has decided that she likes to take pieces of the rolled mat toy that hangs in her cage and make "tea". She delicately shreds the mat and soaks the debris in her water dish. I'm not so sure this is a good idea. Are these mats sprayed with something to prevent insect infestation during shipment? Who knows for sure? The mat makes a great foraging toy and she always loved pulling various items out of its nooks and crannies. But now? I don't think so Lucy!