The specimens with liquid inside are stored in the refrigerator before use in babies mouth. (teethfever.com)
Babies might gag and cough often when starting finger foods because the gag reflex in younger babies mouths is quite far forward and moves back as they age. (ohbabynutrition.com)
Well, the answer is because babies mouths are different from each other. (allaboutbreastfeeding.biz)