Setting a Neutral Flame
- If the surface of the glass looks like an oil slick, decrease the propane at the torch.
- If the surface of the glass is a heavy metalic, decrease the regulator in 1/4 pound increments.
- If the surface of the glass is sky blue, it is very reducing. Decrease the propane at the regulator, usually in half: i.e. decrease from 2 pounds to 1 pound of pressure.