Materials for Pit Firing
1/ Dig a Hole (Depend on workload)
2/ Fine & Coarse sawdust
4/ Metal grate or grill rack
6/ Spit Wood
7/ Tin-foil Saggar (with dry banana/fruit skin, copper wire, and other oxides.) for color effect.
8/ Lighter Fluids
If firing is over cone 9, the polish effect will be lost/disappeared.
In most cases, I prefer a porous “soft” bisque of cone 018-014 (bisque 700-800 ---750) because this porosity facilitates multiple color development and more intense colors.