Preparing the Casing
Snip off about four feet of casing. (Better too much than too little because any extra can be repacked in salt and used later.) Rinse the casing under cool running water to remove any salt clinging to it. Place it in a bowl of cool water and let it soak for about half an hour. While you're waiting for the casing to soak, you can begin preparing the meat as detailed below. After soaking, rinse the casing under cool running water. Slip one end of the casing over the faucet nozzle. Hold the casing firmly on the nozzle, and then turn on the cold water, gently at first, and then more forcefully. This procedure will flush out any salt in the casing and pinpoint any breaks. Should you find a break, simply snip out a small section of the casing. Place the casing in a bowl of water and add a splash of white vinegar. A tablespoon of vinegar per cup of water is sufficient. The vinegar softens the casing a bit more and makes it more transparent, which in turn makes your sausage more pleasing to the eye. Leave the casing in the water/vinegar solution until you are ready to use it. Rinse it well and drain before stuffing.

Say not always what you know, but always know what you say.

- Claudius