If stored in an environment below 12℃, it will turn black and rot.

Most tropical fruits are afraid of cold and are not suitable for refrigeration. The skin is sunken and some dark brown spots appear, indicating that the fruit has been frostbitten. Frostbite fruits are not only destroyed in nutrients, but also easy to deteriorate. In a few days, the meat will turn brown and start to rot. The reason why tropical and subtropical fruits are afraid of low temperature is related to their growing areas and climate. Generally speaking, fruits cultivated in warm areas, especially in summer, are less tolerant to low temperature than fruits cultivated in cold areas and autumn. Therefore, some temperate fruits, such as grapes, apples and pears, can be kept fresh in the refrigerator, while bananas and mangoes will turn black at a temperature of more than ten degrees Celsius.

By the way, I will tell you how to keep bananas:

Do you often feel that bananas will turn black and rot soon after you buy them? Miraculously, you don't need any remedies. You just need to hang bananas and save them for a few more days! Bananas usually put in baskets will rot in about 3 days, but when they are hung up, they are just like those just bought! This is proved by experiments.