What happens after tarantulas molt?

My tarantula molts about once a year and just before she does she throws off hairs so there are bald spots on her. When a tarantula molts they also get a bit cranky so if you handle yours watch out. It takes a few hours when they do start. They lay on their back and crawl out of the old skin. When they are done they are beautiful and they like to handle the old skin for a bit.