>>15985423Casings typically keep for a really really long time as long as you keep them packed in salt and you take what you need for the batch and soak them while you cut, grind and season the meat
>>15985426It depends on what kind of sausage. Kielbasa involves basically just an assload of sugar and garlic, and other more savory kinds might have things like mustard seed, caraway, coriander or anise in varying ratios
