Ingredients

Ingredient Amount
Gerstley Borate Substitue 5.21
Soda Ash 1.04
Whiting 9.38
Wood Ash 54.17
Potassium Feldspar 9.38
Ball Clay 10.41
Silica 10.41
Add Amount
Red Iron Oxide 4.00

Instructions

Published in "Electric Wood Ash" by Ryan Coppage, in the October 2016 issue of Ceramics Monthly.

 
Unwashed wood ash is caustic and gloves are needed when working with it.

Be sure to test the glaze on your clay body and in your kiln first to know how it will act.