Abstract: The invention relates to a package for outgassing foods and/or maturing foods, in particular roasted coffee and/or coffee beans, comprising a bag for storing the food, which includes a film from which the bag is formed, wherein a valve is provided to enable a discharge of gas from the package bag to the outside in the event of overpressure in the package and to reduce the diffusion-related gas exchange in the case of comparable and/or equal pressure conditions in and/or outside the package bag. It is characterized in that the valve is formed as a microperforation in the film having at least one or two holes of the size of 750 ?m2 to 40 000 ?m2, preferably of 390 ?m2 to 20 000 ?m2, particularly preferably 70 ?m2 to 16 000 ?m2 and/or each having the diameter of 10-70 ?m, preferably 20-60 ?m, particularly preferably 30 ?m.