Heat and serve or just thaw and serve. These links have no casings. Smoked but not cured. No nitrates. These semi-hot sausages are fully cooked and a favorite!. Ingredients: grass-fed trim, cheddar cheese from grass fed cow's milk (pasteurized milk, salt, cheese cultures & enzymes), water, sodium lactate, seasonings: (sea salt, mustard seed, black pepper, crushed red pepper, sage.), jalapeno pepper flakes, celery juice powder (celery powder, sea salt). U.S. raised grass-fed beef.