Summer birthday cake can be put on the bus for an hour. Will it go bad?

In summer, if you leave the birthday cake on the bus for an hour, it may go bad. In high temperature environment, cakes are easy to melt, deform or deteriorate, and bacteria are easy to breed, which is not good for health. Therefore, it's best to put the cake in an insulation bag or a refrigerator, and keep a proper temperature in the car to ensure the freshness and safety of the cake.