And, because I'm new, and not 100% on understanding the flame, I'm getting some scum/black in my encasing. This happens sometimes, not all the time, and I keep telling myself to work FARTHER out in the flame to avoid the blackness.
What causes the black stuff in the clear? Too much propane? Working too close to the cones of the flame?
I also sometimes get reactions in some of the glass colors I'm working (esp. the greens, but also sky blue yesterday) Should I work farther out? Should I have the oxy turned up more?
BTW, I am on an oxy con.... minor burner, propane tank outside, etc etc
THANKS,
Angela
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