Some commercial ventures to implement this technology are underway, claiming to cut energy consumption by 40% compared to current domestic refrigerators.
Commercial cabinets are usually significantly larger than domestic refrigerators.
This is the key difference between commercial and most types of domestic refrigerator.
In domestic refrigerators, fresh collard leaves can be stored for about three days.
Small domestic refrigerators are however much less efficient.
Other specialised cooling mechanisms may be used for cooling, but have not been applied to domestic refrigerators.
A domestic refrigerator is an example of a heat pump: a heat engine in reverse.
These operate by the direct application of heat to the refrigerant, without the use of a pump, unlike most domestic refrigerators.
This process is similar to recrystallization, and is promoted by storage at cool temperatures, such as in a domestic refrigerator.
The name was thought appropriate for a company that manufactured ice-boxes and domestic refrigerators.