The Munchkin Soft Tip Safety Spoons alert mom to when baby's food is too hot by turning white once the spoon is dipped into baby's food. When the food is the right temperature the spoon maintains its hue. The spoons soft tip is gentle on baby's gums and the comfort handle allows mom to feed baby comfortably. The package includes 4 spoons in a variety of colors and is BPA Free and is top rack dishwasher safe. Please note that the white hot color change function may cease to function over time, replace when necessary. Always check temperature before feeding.