Apples stored in commercial refrigerated storage will keep for 4-6 months, but for long term storage up to 12 months, growers use CA storage. Apples for CA are picked at their peak of internal quality and condition. They are rushed into CA storage the day they are picked. The oxygen level is lowered to 1.5-3%, temperature is reduced to 30-32 F, and carbon dioxide levels are monitored and controlled.