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Ingredients

Ingredient Amount
Custer Feldspar 73.80
Whiting 11.10
Silica 4.90
Gerstley Borate 10.20
Add Amount
Tin Oxide 1.00
Copper Carbonate 0.35
Bentonite 2.00

Instructions

This is a consistent copper red glaze from Pete Pinell.  The recipe was published in High Fire Glazes, by John Britt.
Apply thick, reduce early.