The following pictures were taken at a pit firing on the beach in San
Francisco, California. They show the basic steps in a primitive pit firing
and tell you what to do in each step. Click on a picture to see an enlarged
view.
Dig a big hole in the ground. (Notice the unfired pots in
the foreground.)
Spread a layer of sawdust on the bottom of the hole. Rake
it smooth.
Put your bisqued pots in the sawdust. You can cover them with
organic materials like seaweed, salt, manure, bone meal, etc., or chemicals
like copper carbonate. Notice that one is covered with burlap soaked in
salt water.
Pile LOTS of wood on top. You need plenty. More than you think.
Torch it!
(If you put any chemicals in the fire, I wouldn't recommend
toasting any weenies.)
Let it burn. It will take hours. Let it cool way down. If
you take your pots out too early, they might crack.
Clean up, fill in the hole, and enjoy your primitive-fired
pottery!