Replying to Liner question

This is probably a question that gets asked alot but I just got new boots and had them molded in the shop when I got them. Will boot dryers ruin the heat mold of a boot? Not sure if the dryer temp is high enough for the liners to get softened up again. I use to always take my liners out of my full tilts and put them on the dryer but I'd never had those molded and never really thought about damaging the liner. The new hawx liners that I have are pretty much a perfect fit and I dont want to mess them up. Anyone have any info on dryers?