What does the "dew point" indicate in refrigeration?

The dew point is a critical concept in refrigeration as it indicates the temperature at which moisture in the air begins to condense. This is significant because condensation of moisture can lead to problems such as ice formation on evaporator coils or unwanted humidity levels within a refrigerated space. Understanding the dew point helps refrigeration engineers manage and control humidity, ensuring proper system operation and preventing condensation-related issues. By maintaining temperatures above the dew point, engineers can effectively minimize condensation and maintain optimal conditions within the refrigeration system.