For a drink to become superheated, where must it be heated?

For a drink to become superheated, it must be heated in a section of the low side refrigerant line. This is because superheating occurs when a liquid is heated beyond its boiling point without changing its phase into a gas. In the context of refrigeration and cooling systems, the process begins when the refrigerant absorbs heat in the evaporator, turning it from liquid to vapor.

In the low side of the refrigerant line, which is part of the system after the evaporator, the refrigerant can be superheated before it enters the compressor. This is important for ensuring that only vapor enters the compressor; otherwise, liquid refrigerant could cause damage. Superheating the refrigerant enhances the efficiency of the system and helps safeguard the compressor's operation.

Heating in other sections, such as the compressor casing or high side refrigerant line, does not facilitate superheating of a beverage directly, as those areas are involved in different processes of the refrigeration cycle. Therefore, heating in these areas is not applicable to the process of superheating a drink.