Bananas are a TCS food in the sense that they should be stored in a certain way to prevent them from going bad; however improper storage will not result in any major health risks.

Although most people do not enjoy eating bananas after they have become mushy and rotten, you will most likely not get sick in any way after eating them when they have reached this state.

This particular fruit is best left on a counter top at room temperature. By putting your bananas in the refrigerator, you will speed up the browning process and they will not last as long.