>>12849960The frosting is heat resistant. It is a type of exoskeleton which protects the tart from harm for exampe if someone shoots at you on your way home from the store the bullet would be deflected by the protective icing. The icing is also sprinkled with flavor chrystals which are activated by stomach acid so as you eat the poptart you will burp up an extra surprise burst of blueberry flavor or strawberry if you prefer