Certain fruit such as mangoes, papayas, pineapples, bananas and all citrus fruits are susceptible to the cold and should not be kept in the fridge. As a rule of thumb, stone fruit will last longer in the fridge. Citrus and other tropical fruits such as bananas, melons and avocados do not belong in the fridge. However, if you suddenly find you have lots of fruit flies in your home in the height of summer or if you want to slow the ripening process, you can also store tropical fruit in the fridge.
It is important to note that not all fruit can be stored together. Certain fruit produce ethylene gas, which speeds up the ripening process of other fruit and significantly reduces their shelf life. For example, kiwis will quickly turn soft when stored with apples. As such, fruit susceptible to ethylene (e.g. kiwis, melons and mangoes) should always be stored separately from fruit that produces ethylene (e.g. apples, apricots, avocados, bananas, pears, nectarines and peaches).