Heat and serve or just thaw and serve. Our smoked Knackwurst comes in a 2-inch casing and about 8 inches long. Smoked but not cured. No nitrates. No sugar. Ingredients: U.S. raised grass-fed beef trim, water, sodium lactate, seasonings: (sea salt, black pepper, coriander, powdered garlic, nutmeg, cardamon), celery juice powder (celery powder, sea salt). U.S. raised grass-fed beef.