One of the best things you can do to extend the life of perishable produce is to keep ripening fruit away from other vegetables and fruit. Ripening fruits are those that get sweeter over time, like apples and pears. As they ripen, they emit an odorless gas called ethylene that can cause even hearty produce like squash and onions to yellow, wilt and even rot. Just keeping these items separated from each other can extend the life of your produce by weeks.
ANDREWS MCMEEL SYNDICATION