If your fruit is not ripe and ready to eat and you want to hasten the
ripening process, it's really easy to do. Just place the fruit (peaches, plums, nectarines
or kiwifruit) in a paper bag out of direct sunlight and at room temperature. (Be sure to
keep the bag and its contents dry.) Fold the top of the bag over so it's closed. If you
want to speed up the process, just place an apple or a banana inside the bag with the
other fruit. Be sure to check the fruit daily to be sure to not over-ripen. The natural
ethylene produced by the fruit inside this bag will cause the fruit to ripen faster than
by just setting it on a counter or leaving it in your refrigerator. You can tell that the
fruit is ripe if it yields to gentle palm pressure. Once the fruit is ripe you can place
it in your refrigerator. Tree fruit will keep a few days longer in your refrigerator after
it has been ripened and kiwifruit can be refrigerated for a week or more after it has
ripened.