Ingredients

Ingredient Amount
Lithium Carbonate 2.50
Whiting 19.00
F-4 Feldspar 54.00
EPK Kaolin 5.00
Silica 19.50
Add Amount
Cobalt Carbonate 1.50
Cobalt Oxide 0.75
Iron Oxide 1.00
Bentonite 3.75

Instructions

This is a flexible glaze with a wide range for temperature—matte when fired cooler, shiny when fired hot, and likes to form cooling crystals. Add more iron oxide for a duller blue, or reduce iron or exclude for a brighter lighter blue. This should be applied medium thick on bisqueware only. It is lovely when fired in a wood kiln with salt. 

This recipe was shared by Maya Machin in the September 2023 issue of Ceramics Monthly.