Ingredients

Ingredient Amount
bone ash 11.60
magnesium carbonate 7.10
minspar 200 feldspar 48.20
epk kaolin 25.90
silica 25.90
Add Amount
bentonite 2.20
red iron oxide 7.10

Instructions

Mix to a specific gravity of 1.47. Tomato Red works well with a thin or thick application. It covers the ware without breaking on textures. 

Mix these glazes (Rutile Blue, Dolly Russian, Susie Yellow, and Tomato Red) to a thin, tomato-soup consistency in the bucket. Even the shino (Dolly Russian glaze) is mixed so the slurry is on the thin side. If you dip your index finger in the mixed glaze, you should clearly see the wrinkles on your knuckle and the outline of your fingernail, but you should not be able to see any skin through the glaze. The glazes were all applied via dipping the pots shown into the bucket. Each dip immersed the pot in the glaze for no longer than three seconds total, and excess glaze was shaken off as soon as the pot was pulled out of the bucket. The pots were fired to cone 10 in a Blaauw kiln with a light reduction. The clay was Standard 306. 

This recipe was shared by Ben Clark and Andrew Osterburg in the February 2022 issue of Ceramics Monthly.