^ âeucatastropheâ (US) / âeucatastropheâ (UK) in Oxford Dictionaries, Oxford University Press.
I agree compeltely with Glauber Rocha; @Shirley, although you asked about storing in the refrigerator, it is worth noting also that caramelized onions store very well in the freezer, up to six months. â Bruce Goldstein Dec 12 '11 at 16:01.
Refrigeration is only necessary when trying to extend the shelf life of sweet or mild onion varieties with high water content, but be sure to use a low humidity setting, they must be kept dry. 1  Whole peeled onions should be refrigerated after purchasing. 2  Cut onions can be stored in a sealed container for up to 7 days.