Did My Polymer Clay Get Burned?

Polymer clay does not burn unless it reaches temperatures near 350°F (176°C). ... If your project is close to the element, your thermometer could be reading the correct temperature but your project could still bubble and blacken. If you have burned polymer clay, you need to address your oven, not your baking times.

How do you know if you burnt polymer clay?

Sometimes you'll find that your polymer clay beads will come out of the oven with a brownish tint ranging from a slight yellow to a dark burn depending on how bad the scorch was. This happens when the oven you are using (a toaster oven in my case) has open elements that send direct heat onto your polymer clay.

Can I still use burnt polymer clay?

In addition to phthalate exposure the research indicates that when polymer clay is overheated enough or accidentally burned, the PVC will break down and release highly toxic hydrochloric acid gas.