Equipment for yeast rehydration, in particular in dry, moist or in liquid dispersion form, which comprises a containment tank (2) closed by a cover (70) intended to receive a measured dose of yeasts to be rehydrated first and second supply means (3, 4) adapted to respectively insert a rehydration liquid and nutritive substances in the tank (2) a circulation duct (14) placed in connection between at least one outlet opening (15) and at least one return opening (16, 16′) of the containment tank (2), intercepted by pumping means (17) for making the fluid mixture flow between the openings (14, 16). The equipment comprises means for insufflating air (32) inside the tank (2) susceptible for creating an over-pressure of a value that is regulated through suitable vent means (18).
