• 3 X Ancient copper along top third/ half in undulating pattern
• 3 X heavy coats of AMACO Cobalt on bottom of bowl
• AMACO Oatmeal where they meet
• Fred to 1222°C 5 min hold and then once it has hit temp and was cooling I opened the bung holes at 1000°C after hearing that crystals like oxygen. Not sure if it’s true or not but that’s what I did and happy with result

Credit: Wes Dee