Clean all parts really well and use a lint free cloth to dry them. I used a propane torch, but am going to try something different with another
mod tonight. It can be done in an oven, too. With the torch, I just slowly heated the pieces all over and when it started to change, I focused on certain areas at a time. I'm going to try the oven way. 550 degrees should get it to a light blue which would be cool.