Processing & Preservation
Controlled atmosphere storage CA
Bulk storage in which gas composition is continuously monitored and actively corrected, used mainly for fruit such as apples.
Real-life application
Why apples bought from a supermarket in April can still taste crisp from an autumn harvest — kept in low-oxygen rooms that slow ripening for months.
Related terms
Modified atmosphere packaging
Processing & PreservationReplacing the air in a pack with a controlled gas mixture, typically carbon dioxide, nitrogen and sometimes oxygen, then sealing without further adjustment.
Respiration rate
Processing & PreservationThe rate at which harvested produce consumes oxygen and releases carbon dioxide, heat and water.
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