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when cooking, we like to try a slice to test the taste. We often get burned during the process. With temperature sensitive coating on top, Shy Chopstick can change its color when heated. The length of the red part indicates how hot the food is. When the red shrinks back to be shorter than the safety line, you can taste you cooking without getting burned!
Beihua University
School of Mechanism
Jilin, China
Beihua University
School of Mechanism
Jilin, China
Wang Li,
Ying-hui Feng