1. Cut a certain amount of plastic wrap at home, wash the plastic wrap to ensure dryness, and wrap the banana roots tightly with plastic wrap (remember to wrap them several times), which can greatly slow down the aging speed of bananas.

2. After buying back bananas, it is suggested to wash bananas with clear water first, which is not only hygienic, but also can wash off some ripening agents that may exist on bananas, killing two birds with one stone. Then put bananas in a ventilated and dry place indoors to prevent them from rotting as much as possible.