In the U.S., the apples sold at stores can be up to a year old.
In a warehouse setting, they often sit at least 9 to 12 month, and one investigation showed that, on average, apples are 14 months old.
Science has made it possible for some apples to be stored as long as a year before selling.
Two types of storage are used for apples. They are: 1) conventional refrigeration, where apples are kept at 34 to 38 degrees Fahrenheit while awaiting shipment; and 2) controlled atmosphere [CA] storage.
In CA storage, apples are sealed in an environment that is around two percent oxygen where temperature, humidity, nitrogen, and carbon dioxide are all carefully regulated. Controlled-atmosphere storage slows the apples’ ‘breathing’, which consequently slows their ripening.