Expanding Children's Bowl / Children tableware

As knowledge spreads and the pace of life accelerates, parents of the 21st century want to have a
scientific and convenient parenting experience. Earlier generations usually blow or take a sip to judge suitable temperature to feed babies. It causes bacterial cross-contamination. Children who are able to eat independently have been scalded in the mouth by hot soup. Young parents know about the dangers but can't find good solutions.
“Expanding" is a bowl with air bag. The size of air bag forms the standard of judging temperature. It can prevent children from being scalded in the mouth and helps parents taking care of children scientifically.