The pre-cooling system enables local (in place) packaging for the producer (field-packed products), without transport to a cooling house. After cooling and packaging any regular distribution channels are available. - this is a pre-cooling postharvest technology for the removal of the field heat; - minimal process system; - existing fix and mobile system; - fast removal of the field heat in vacuum due vaporizing after harvesting; - uniform cooling, same temperature (as well on the surface as in the cold junction); - individual parameter settings for the different products; - preserve quality and taste; - substantially longer shelf life of the fresh produce; - specific developed control system; - save on energy costs; - vacuum cooling methods are much more effective and modern than the traditional technologies; - mobile, it is possible to move by truck trailer e.g. to the field, direct to the harvest place; - in cooperation with other farmers, the utilization of the vacuum cooling system is more beneficial, the costs can be shared among the partners; - different capacities are available.