I've started using a piece of oak wood to stir in the pot. It works very well, with no flash fires and smoke.
I've been casting for about 40 years, using parrafin and bullet lube to flux with, not knowing the chemistry behind it. When I heard about using a wood stick, I thought, "yeah, right"...
It works.
I would suggest using a hardwood stick, however... one with little to no sap in it.
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