Winterized non-GMO expeller pressed high oleic sunflower oil offers you the same health benefits as our non-GMO expeller pressed high oleic sunflower oil. It’s prepared in the same manner, but with one additional step, the winterization process. Winterization involves crystalizing or partially solidifying the sunflower oil followed by separating the solids via a cooling process. This process removes the waxes or solids from the oil to increase its lifespan on a cold shelf. It makes dressings, sauces, and mayonnaise even more favorable.