Method and system for deep vacuum packaging of a food product without covering liquid

Method for packaging of a food product, comprising the following successive steps:

• placing the food product and one or more additives in a mixing device;
• evacuating the mixing device and mixing its contents to ensure a penetration of the additive(s) in the food product and to outgas a mixture, until an absolute pressure of less than or equal to 30 mbars is reached;
• vacuum packaging at least a portion of the mixture cold blanched in at least one container, the mixture being at a temperature less than the boiling temperature of water at a pressure used for vacuum packaging of the mixture;
• after introducing an equal portion of the mixture into a plurality of rigid containers to define a batch, introducing one or more first measurement sensor into at least one of said rigid containers to define a control container, each first measurement sensor comprises a transmitter to transmit measurements performed in the form of communication signals;
• and
• after placing said batch in an enclosure, introducing one or more second measurement sensors into the enclosure, the enclosure is connected to a pressure regulator to reduce a pressure of the enclosure, each second measurement sensor comprises a transmitter to transmit measurements performed in the form of communication signals, so as to determine in real time a differential pressure and a temperature in each container of said batch, thereby enabling a monitoring of the packaging of said batch.

A packaging system for packaging of a food product, comprising:

• a mixing device to which the food product and one or more additives are placed;
• a pumping unit to evacuate an interior space of the mixing device and to mix contents of the mixing device to ensure a penetration of the additive(s) in the food product and to outgas a mixture, the pumping unit is configured to attain an absolute pressure in the mixing device less than 30 mbars;
• a receiving enclosure to receive a rigid container and a rigid cover, to vacuum package at least a portion of the mixture cold blanched in the container, the mixture being at a temperature less than the boiling temperature of water at a pressure used for vacuum packaging of the mixture, the receiving enclosure is connected to a pressure regulator to reduce a pressure of the receiving enclosure and comprises a magnetic element to hold the cover away from an orifice of the container to allow gases contained in the container to escape, the receiving enclosure is outfitted with one or more first measurement sensors, each first measurement sensor comprises a transmitter to transmit measurement signals;
• a sterilization autoclave outfitted with one or more second measurement sensors, each second measurement sensor comprises a transmitter to transmit measurement signals;
• wherein after introducing an equal portion of the mixture into a plurality of rigid containers to define a batch in the receiving enclosure, one or more third measurement sensors are introduced into at least one of said plurality of rigid containers to define a control container, each third measurement sensor comprises a transmitter to transmit measurement signals;
• and
• a central control unit to receive said measurement signals to monitor in real time physical parameters in at least one of the following:
• the receiving enclosure, said each container and the autoclave.