Help your baby discover solid foods safely with explora heat sensing spoons our heat sensing spoons change colour from red to yellow if food is too hot ideal if youre using a microwave to heat food as you can tell at a glance when its safe to feed your baby and when its not features pack of 3 spoons change colour if food is too hot soft tips for tender gums long handles for reaching into jars and storage pots dishwasher microwave and steriliser safe suitable for babies aged 4 months