Did you know that you should never keep bananas refrigerated, as they can produce a powerful gas which makes the fruit go off faster? Ethylene gas, an industrial ripening agent, is present on most commercially produced bananas – and when you place a bag of plastic wrapped bananas in the refrigerator the damp accelerates the ripening process.
This obviously isn’t good if your bananas are already fairly ripe and you want to keep them fresh for as long as possible. Bananas are grown in a warm tropical climate, so they don’t do well in chilly, damp conditions, which perfectly describes the environment of a refrigerator!
Even once you’ve peeled your bananas, it’s not a good idea to refrigerate them, as they’ll quickly turn to mush and go brown, as they oxidise. You can freeze peeled bananas, so that you can use them later to make tasty banana smoothies but you might want to try brushing them with lemon juice before you do so, as this prevents them from oxidising too quickly.