After harvest, the dry onions are dormant for a period, and depending on the storage
period required, onions may be irradiated to prevent sprouting. The shelf life is longer in
pungent varieties as the sulfur components may help deter the attack by pathogens. The
yellow onions have a shelf life of 2–3 months in a cool dry place, whereas the red onions
have a shelf life of only 2–4 weeks. Onions are not refrigerated or stored along with potatoes