What is the difference between cold storage and controlled atmosphere storage as marked on apple packaging?
A. Cold storage apples are placed in refrigerated rooms (0°C) with a humidity of 85% or higher. Low temperatures, slow respiration, and high humidity prevent moisture evaporation. Canadian cold storage apples are available during the fall and early winter months. Controlled atmosphere (CA) storage combines airtight refrigeration from 0°C to 5°C with reduced oxygen supply and increased levels of carbon dioxide to retard ripening. Controlled atmosphere apples are available during the winter and through into the summer months, and they retain virtually all of their harvest crispness and flavour.
