Not very hot. It's just a small bottle torch, and I only waved it around for maybe 2 minutes.
Hold the tip of the flame off the part, and keep it moving; touch it every now and then, and you'll see when it's getting too hot to touch. That's hot enough.
(you can sacrifice a tiny fingertip burn; or just keep a 6-year-old around, they'll want to touch it and you can teach them a lesson at the same time)
See, that's the kind of great advice we get on TT, ya can't find gems like that elsewhere.
