How to speed up the ripening of an avocado so that it softens faster? You probably don't know that avocados don't ripen on the tree, but only after harvesting, which is why we often come across unripe and hard fruits in stores. Logically. Soft fruits are not permanent (if you buy soft, you must eat them the same day!). So since you buy hard and unripe, you have to wait for them to ripen. They can be ripened at room temperature, but the process is long, as it takes 4 to 5 days! What if you want it today? Check out how to speed up the ripening of an avocado so that it softens faster and is ripe in minutes.