subject (milk, wine, or other products) to a process of partial sterilization, especially one involving heat treatment or irradiation, thus making the product safe for consumption and improving its keeping quality

dairies were now required by law to pasteurize milk

(of milk, wine, or other products) subjected to a process of partial sterilization, especially one involving heat treatment or irradiation, to make the product safe for consumption and improve its keeping quality

pasteurized milk