Oribe

Ingredients are stated in grams. Source explicitly labels this glaze not food safe. Test on tiles; use appropriate ventilation and PPE, avoid inhaling dust, review raw-material safety information, and verify functional or food-contact suitability with fired-glaze testing.

Ingredients

Material%
Custer Feldspar30.9
Silica25.3
Whiting22.400000000000002
EPK Kaolin12.5
Talc7.8
Black Copper Oxide5.5
Bone Ash1.0999999999999999