How to Prepare Natural Hog Casings: Soaking, Rinsing & Stuffing

By Miroslaw Stanuszek
7 min read
How to Prepare Natural Hog Casings: Soaking, Rinsing & Stuffing

Even the highest-quality natural casings need a little prep before they're ready for the stuffer. A quick rinse and a good soak are the difference between a smooth, satisfying stuffing session and one full of tangles, tears, and blowouts.

The good news: it's simple, and once you've done it once, it becomes second nature. Here's exactly how to prepare your hog casings from package to stuffing tube.

The Short Answer

Remove a little more casing than you think you'll need, then rinse the salt off under cold running water and flush the insides. Soak the casings in cool water in the refrigerator for at least two hours before use — overnight is even better. Once soaked, load them onto your stuffing tube and stuff at a slow, steady pace. Store any leftover casings by patting them dry, covering them in salt, and refrigerating. Never freeze natural casings.

How Much Casing Do You Need?

Casings usually come tied with a single large knot (as in our home packs) or looped through a color-coded plastic ring. Untie the knot or pull the strands from the ring, then roughly measure out what your batch calls for.

As a rule of thumb:

  • 29–32mm casings: about 18–20 inches per pound of meat
  • 32–35mm casings: about 14–18 inches per pound of meat

The exact amount depends on whether you're making links, loops, or rope, and on how tightly you stuff. When in doubt, pull a little extra — bursts happen, and it's always better to have a few inches to spare than to run short mid-batch. Seal the rest back in its original bag and return it to the refrigerator right away.

Why Natural Casings Are Packed in Salt

Natural hog casings arrive packed in purified salt, and that's exactly what you want. Salt draws out moisture and creates an environment where bacterial growth is minimized — which, together with refrigeration, is what makes natural casings shelf-stable and gives them their long storage life.

This means two things for you as the maker. First, the casings need to be rinsed and rehydrated before use, since the same salt that preserves them has to come off before stuffing. Second, natural casings can give off a mild odor, especially after sitting out of the fridge for a while. This is completely normal and is not a sign of spoilage — returning them to refrigeration reduces or removes the smell entirely.

How to Prepare Your Casings, Step by Step



  1. Take only what you need. Remove just the amount of casing you'll use for your batch. For the most common deli and grill diameters — 29–32mm, 32–35mm, or hog "home pack" size — figure on about 1.5 to 2 feet per pound. Whatever you don't use goes straight back into salt storage.

  2. Rinse off the salt. Place your casings in a clean, food-safe bowl in a cleaned sink and rinse them under cool running water to wash away the salt, inside and out. The exterior rinse removes debris and de-salts the casing; running water through the inside also lubricates it for easier loading onto the tube later. Our casings are sold pre-flushed and salt-cured, but a fresh rinse before use is still best practice.

  3. Soak in cool water. Soak all natural casings in cool water in the refrigerator for about two hours before use — and if you have the time, an overnight soak in the fridge is ideal. Soaking fully rehydrates the casing, restoring the elasticity and strength it needs to stretch without tearing. Larger casings like hog and beef middles, beef rounds, and beef bung especially benefit from an overnight soak. Just don't overdo it — soak too long, and the casing can turn soft and weak.

  4. Optional additions to the soak. Two small tricks worth knowing: about ½ teaspoon of baking soda per cup of soaking water helps control any lingering odor, and a squeeze of lemon juice or a tablespoon of white vinegar makes the casings even more tender. Neither is necessary for an overnight soak.

  5. Load and stuff. Once the casings are soaked, slide one onto your stuffing tube and begin stuffing at a steady, controlled pace. Don't rush — hurrying almost always backfires with blowouts and uneven links. After all that prep, you don't want a final product that's too loose or too tight, so take your time at this stage. You'll be glad you did.

For a full walkthrough of the stuffing step itself, see our guide to Sausage Making 101: Stuffing.

Finding the Opening and Loading the Tube



One thing that trips up a lot of first-timers is simply finding the opening of the casing. Natural casings are prone to twisting and knotting as you pull them off the hank or bundle, so a little patience helps here.

After you've cut away the lengths you want, let them soak for 30 minutes before you even rinse the insides. Gently moving the casing around in the water helps loosen the knots, and when you rinse — letting water pass through to form a kind of "water sausage" — many of those knots resolve themselves. Working the casings loose is a skill that gets easier every time you do it.

Once you've found an end but are struggling to open it, pinch the tip and pull it apart with your forefinger, almost like a tiny finger-violin motion. That separates the top and bottom of the casing so you can grab the opening more easily.

When loading, gather the whole length onto the tube like a shirt sleeve, leaving a few inches hanging off the front. Tying that end off before stuffing is optional — if you do tie it, use a sausage pricker to give trapped air a way out. Otherwise, leave 2–3 inches loose, which works especially well if you're making loops. As the meat starts to exit the tube, pinch the casing to keep it firm at the start. If it ends up a little loose, you can always squeeze it tighter afterward — no big deal.

Why Casings Burst or Split — and How to Prevent It



Blowouts are the most common frustration in home sausage making, and they almost always trace back to a few preventable causes:

Over-stuffing. The most frequent culprit. A casing filled too tightly has no room left to twist into links without splitting. Aim for firm but not tight — about three-quarters full — so you have enough give to twist without stressing the casing.

Air pockets. Trapped air creates weak points that rupture during stuffing, cooking, and smoking—flushing the insides during prep and keeping steady pressure while stuffing both help. Prick any visible air pockets with a sausage pricker or sterilized needle, ideally soon after stuffing. Even if you don't see any, assume they're there and give the Sausage a few pokes throughout — spaced at least an inch apart, so you don't weaken the casing.

Under-soaked casings. A casing that wasn't fully rehydrated stays stiff and tears far more easily. This is exactly why the soak step matters.

Tube size mismatch. Match your stuffing tube diameter to your casing size. A casing forced onto a tube that's too large is stressed before you even begin.

Casing quality plays a role too. Casings with pinholes and weak spots will burst no matter how careful you are — which is why ours are hand-pulled to prevent cell-wall degradation and are Grade-A quality, minimizing pinholes and preserving inner-wall strength for smoother, more dependable stuffing.

How to Store Leftover Casings

Properly stored, leftover casings keep for a few weeks. Here's how.

Squeeze and pull the water out of the insides and outside, then pat the casings dry. Cover them thoroughly in purified or non-iodized salt, let them air-dry for an hour or two, then seal them in a resealable zipper-top bag and refrigerate at 38–40°F. Because some moisture stays trapped in the casing's cell walls, already-soaked casings keep for about 2–3 weeks in the refrigerator rather than indefinitely.

If you have less than a foot of casing left over, it's usually not worth saving unless you plan to make more Sausage within about a week.

One rule that never changes: do not freeze natural casings. Freezing weakens the casing structure, creating micro-tears and pinholes that turn into blowouts, tears, and splits the moment you thaw them and start stuffing. Keep them refrigerated only — always.

Want to Skip the Tube-Loading Step?

If loading casings onto the tube feels daunting — or you've tried it once and swore "never again" — our Pre-Tubed Natural Hog Casings come already loaded onto a plastic sleeve that slips right onto your stuffing tube. You pull the sleeve away, and the casings stay in place. They're already rinsed inside, so prep is as simple as rinsing the outside and soaking overnight.

They do cost a bit more than standard casings, but the time they save is obvious the first time you use them — which is why they become a lot of makers' go-to. That said, working with standard casings gets easy after a couple of rounds, so don't be afraid to practice.

Get Started

Great Sausage starts with quality casings and the right equipment. These links will make the whole process easier:

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