The present invention relates to a system for preserving and metering ingredients, comprising a set of compartments (110) arranged in a preservation chamber (101) and a device for removing and metering ingredients for removing a predetermined quantity of ingredients from at least one compartment (110), said removing device comprising (i) a collecting vessel (150) intended to temporarily store, in successive layers, the ingredients withdrawn from each compartment, (ii) a controlled conveying mechanism intended to move the collecting vessel (150) into the vicinity of each compartment (110), and (iii) a control unit. The present invention also relates to a distribution device intended to dispose the removed ingredients randomly and homogeneously on the surface of a substrate.