Once dried and baked for 40 minutes at 325°F (163°C), the paints are permanent and dishwasher safe.
Avoid use of strong, abrasive cleaners such as steel scouring pads, and sharp cutting implements such as stainless steel knives, which may leave scratches on the surface and make it more difficult to clean.
To heat set a finished piece, place it in a 325°F (163°C) oven for 40 minutes. Since many vitreous and ceramic materials cannot withstand sudden changes in temperature, we recommend that you place your piece in a room temperature oven and allow it to warm up with the oven. After 40 minutes, turn the oven off and allow it to cool back to room temperature gradually.
Not recommended for use on surfaces that come in contact with food.