1. Ripening with applesIf bananas are not ripe, you can choose to wrap them in apples to ripen them. This method is more effective and feasible. Prepare a clean plastic bag, then put the bananas and ripe apples together, tie the plastic bag mouth tightly sealed, placed in a dry place for about three days. Ripening bananas in this way is relatively simple. In addition to apples, pears or oranges can also be. 2. Ripening bananas with banana peels is also a recommended way to ripen bananas. Put all the banana peels and unripe bananas into a clean plastic bag, and then make sure that the mouth of the bag is sealed so as not to let it escape into the air. Once sealed, store it in a dry place. This method is actually similar to ripening with apples. Usually after leaving it for about three days, some spots will appear, indicating that the banana is ripe.3. Ripening Bananas at Higher TemperaturesYou can also choose to ripen bananas by placing them at higher temperatures. This method is also effective and simple. First, put the bananas in a sealed plastic bag, seal it well, and then put it in an environment with a temperature of about 20 degrees. If you ripen bananas in this way, it is faster. However, if you choose to ripen them in the greenhouse, the taste will not be affected, if you ripen them in other places, there may be some effects. Bananas should not be eaten if they are not ripe. Eating unripe bananas can cause diarrhea, which is not good for your health. You must choose ripe bananas. If the banana is not ripe, you can use the above method to speed up the ripening.