Bread-Bakers v099.n018.8

Clay bread pans are great. First, are they Glazed-fired on the inside? 
if not don't use them. If they have been glazed-fired (that's a ceramic 
fired glaze) you soak them in warm water, in a large kettle completely 
submerged  for about 15 minutes before you bake in them. Dry out the 
inside and grease the inside with butter or shorting lightly, before you 
put your dough in them. You shouldn't have a problem after that. They 
form a nice crust and make a great loaf.