*3.1. Cook–Chill Apparatus*

This group of inventions includes both cooking apparatus for low scale food production than very large devices useful for industrial purposes. An example of a low scale apparatus is a device consisting in a plate with a lower multizonal heater that can cooks

two different recipes at the same time divided in two different vessels. It has also an upper heater for grilling [31–33].

Several inventions are based on the same principle, this kind of apparatus consists in a water bath (typically a tank) in which packaged food can be cooked and rapidly chilled changing the temperature of the bath. Inventions differ between them in the warming system [34], water filling and replacement devices, and temperature control devices [35–38]. Some similar apparatus was designed also for unpackaged food [39].
