Will cut up unripe papaya ripen in the fridge?

Cut up unripe papaya will not ripen effectively in the fridge. Cold temperatures slow down the ripening process, which primarily occurs at room temperature. To encourage ripening, it's best to store unripe papaya at room temperature, away from direct sunlight, until it becomes softer and develops its characteristic color. Once ripe, you can then refrigerate it to extend its shelf life.