Finding the right temperature for infants’ milk and food is very important, yet it is not easy. If the temperature is too high or too low, the baby might suffer a burn or fall sick. Sense is a series of infant products that use thermochromic materials to indicate the temperature of the food they contain. When the food is too cold, the thermochromic material turns blue. When the food is too hot, it turns pink. When the temperature is right, it turns white.