While refrigeration is known as one of the most effective methods for storing apples, apple growers no longer rely solely on refrigeration. Cutting-edge technology also controls the atmosphere in apple warehouses.

Systems are installed to control indoor air quality, minimizing oxygen levels. Slightly increasing the carbon dioxide level regulates the apples’ respiration. In these rooms, where ethylene, a cause of apple aging, is removed with ethylene absorbers, 1-MCP application, which suppresses and reduces ethylene production, is also effective.

All rooms equipped with humidifiers maintain a stable humidity level. This perfect balance allows some varieties of apples to be stored at 0°C for over a year without spoilage. The shelf life of apples stored in CA refrigerated warehouses is also significantly extended.