The accuracy of home oven temperatures may vary significantly and will affect the baking of your clay. To test the temperature of the oven before baking your finished piece, always use the following test:
Pinch off a small ball of clay.
Shape a disc 1/2 inch (12 mm) in diameter and approximately 1/4 inch (6 mm) thick.
Refer to Sculpey clay instructions for baking time and temperature.
Bake piece.
Remove from the oven and check color. Any darkened areas indicate that your oven is too hot.
If your oven is too hot, lower your oven temperature by 10°F (5°C) and try this test again.