A process (10) is proposed for producing a precooked food product based on meat, fish, vegetables, fruit, pasta or a sauce. The process (10) comprises: providing (21 - 27) a packaging containing a food product in a volume insulated from the external environment； extracting (29) air from said volume such that a vacuum condition is created therein； maintaining (31) the packaging at a constant temperature of between 40°C and 80°C for a predetermined first time interval, subjecting (35) the packaging to a predetermined pressure of between 250 MPa and 600 MPa for a second time interval less than the first time interval, and bringing (33,37) the packaging to a predetermined temperature of between 0°C and 4°C at the end of the first time interval. Further proposed is a precooked food product obtained through the process, its use for the preparation of a gastronomic product and a kit for the preparation of a gastronomic product comprising the said precooked food product.
