I've noticed a lot of folks using saw dust as Flux lately. I've always used bees wax. What's is the concensus on the forum? https://goo.gl/images/UjQkhm
Beeswax is a sacrificial reducant, but it is not a "flux". Fluxes remove oxidized impurities, reducants reduce oxides to elemental metal. Sawdust serves the purpose of both.