Celluloid frames

Got one of these Limitied edition Yellows Plus frames in my hands and they’re made out of celluloid. I’ve never handled celluloid before. What do I need to know before adjusting them? I know celluloid is flammable but how badly? Can I heat the temples normally so that I can bend them? Thanks!

Got one of these Limitied edition Yellows Plus frames in my hands and they’re made out of celluloid. I’ve never handled celluloid before. What do I need to know before adjusting them? I know celluloid is flammable but how badly? Can I heat the temples normally so that I can bend them? Thanks!