 |  Built right into the non-stick coating of the pan, Tefal's unique Thermo-Spot heat indicator tells you when your pan has reached the optimum temperature to seal in the flavor of your food.
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 |  Before heating, the Thermo-Spot pattern is clearly visible. As the pan heats up, the pattern begins to change. Once it reaches the ideal temperature, the Thermo-Spot pattern turns solid red.
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