These Heat Indicator Color Changing Spoons change colour at 120F when the food you’re heating in the microwave is hot. $9.50 for a set of three. [Via Stylehive]
These 3 colorful spoons are meant for microwave meal preparations only. Plastic spoons change color at (120 F) when food is hot. Simply heat, stir & serve. Spoon can remain in microwave while food heats, avoiding countertop mess. Heat resistant up to 250 F.