Pears ripen very quickly, so quickly that pears should probably go directly from your grocery bag to the refrigerator or freezer. The cold temperature will slow down the pears’ ethylene production and give them an extra few days of freshness. For room temperature pears that are already ripe, expect them to last a couple of days. If you put them in the fridge, expect them to be good for up to five days. Frozen pears can last a couple of months, but know how you plan to use them before choosing your freezing method.
14. Plums and Peaches
These two fruits can be stored together without risking their freshness, but be sure not to store them near anything else. Peaches and plums produce increasing levels of ethylene as they ripen. As with most ethylene-producing foods, storing them in the refrigerator slows their gas production down. Plums and peaches last up to five days in the refrigerator, and up to two months when frozen. If you want them to ripen quickly, store them at room temperature for a couple of days.
Just as we point out that most ripe fruits and vegetables last longer in colder temperatures, the potato proves itself an exception to the rule. Potatoes produce much smaller levels of ethylene and actually have a longer shelf life in room temperature. You can store them in the pantry for up to two months. If you keep them in the refrigerator, you might only get about two weeks out of them before they start to turn. Freezing potatoes works well, but cook them beforehand. The shelf life for frozen potatoes is up to one year.