Spit Roast Pork Shoulder on the Auspit: Timing, Temps and Crackling

[IMAGE 1: Hero]

Shot: 5kg pork shoulder turning on the Auspit over glowing coals, skin blistered and golden, campsite in the background

Alt text: pork shoulder with blistered crackling turning on a portable spit over charcoal

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There's a moment at every camp cook-up when the crackling starts to blister and pop, and suddenly everyone's hovering around the fire pretending they're not hungry. A spit roast pork shoulder gives you that moment, and it's one of the most forgiving cuts you can put on the Auspit.

We cooked a 5kg shoulder over charcoal with a probe in it from start to finish, and it took three to four hours. This guide covers everything we learned: which cut to buy, how to prep it, how to set up your fire, how long it takes, and how to get crackling that actually crackles.

Why Pork Shoulder Suits the Spit

Shoulder is a hard-working cut with plenty of fat and connective tissue running through it. On a hot grill that can mean chewy meat. On a slow-turning spit it's a different story. As it rotates, the fat renders and bastes the meat as it goes, so you get juicy, sliceable pork without standing over it with a brush.

It's also a smart buy for a group. A 5kg shoulder comfortably feeds a dozen hungry campers for a lot less per head than premium cuts. If you're catering for a bigger mob, our tips on spit roasting for a crowd without the stress will help you plan quantities and timing.

Bone-In, Boneless or Pork Neck?

Ask your butcher for one of these three:

• Boneless and rolled. Our pick for the spit. It has an even thickness from end to end, so it cooks evenly, and it's far easier to skewer through the centre and balance.
• Bone-in. Plenty of cooks love it on the bone, but it's trickier on a spit. The bone makes it hard to run the skewer through the middle, and the weight sits off-centre, which makes the load wobble.
• Pork neck (sold as pork scotch). Cut from the top of the shoulder and beautifully marbled. It's usually sold without skin, so no crackling, but it's smaller and quicker to cook. A great option when it's just two or three of you at camp.

How to Prep a Pork Shoulder for the Spit

Good pork on a spit is mostly won before the fire is even lit.

1. Dry the skin. Pat the shoulder dry with paper towel and leave it uncovered in the fridge overnight. If you're prepping at camp, pat it as dry as you possibly can. Dry skin is the foundation of good crackling.
2. Score the skin. Cut lines about 1cm apart through the skin and fat, but not into the meat. A sharp Stanley knife does a cleaner job than a kitchen knife, or ask your butcher to do it.
3. Season the meat, salt the skin. Rub your seasoning into the exposed meat and the ends. A good pork rub does the heavy lifting here. Keep it off the skin and just salt the skin generously right before it goes on.
4. Tie it tight. Loop butcher's twine around the shoulder every few centimetres. It keeps it round and compact, and holds the skin taut so it cooks evenly.
5. Skewer and balance. Run the skewer through the centre and push the forks in firmly at both ends. Hold the skewer in both hands and roll it. If one side keeps swinging to the bottom, re-skewer. A balanced load turns smoothly and cooks evenly.

[IMAGE 2: Prep]

Shot: tied pork shoulder with scored skin, skewered and forked, ready to go on the spit

Alt text: scored and tied pork shoulder skewered on a rotisserie spit ready for cooking

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Setting Up Your Fire

If you're new to cooking on the Auspit, start with our step-by-step guide to charcoal spit roasting. Here's what matters most for pork.

Use lump charcoal. It burns hot and clean and adds a gentle smokiness. Mallee root lump charcoal holds a steady heat for a long cook like this one.

Get the coals going properly. Lighting charcoal with a chimney and firelighters is the easiest way to get an even bed of coals. Wait until they're glowing with a light coat of grey ash before the meat goes on.

Aim for medium heat. Hold your hand at meat height. If you can keep it there for five or six seconds, you're in the zone. Spread the coals so the heat covers the full length of the shoulder.

Plan your top-ups. Have a second batch of coals lit and ready to add every 45 to 60 minutes. On a windy day you'll burn through them faster, so shelter the fire where you can.

How Long to Spit Roast Pork Shoulder

Allow roughly 40 to 50 minutes per kilo over steady medium coals. Our 5kg boneless shoulder took three to four hours. Wind, air temperature and the thickness of the shoulder will all shift that, so treat these times as a guide and let the probe have the final say.

The Pork Shoulder Internal Temp to Aim For

For sliceable pork, take the shoulder off the spit once the thickest part reads 75 to 80°C. Food safety guidance for rolled and tied roasts is at least 75°C in the centre, because rolling moves the outside surface into the middle, so it needs a proper cook.

• Probe the thickest part, keeping the tip away from the skewer. The metal conducts heat and will give you a falsely high reading.
• Check it every half hour or so. We had a probe in ours for the whole cook, which takes all the guesswork out.
• Want pulled pork instead? That needs 90 to 95°C and a much longer cook to break down the connective tissue. A different job altogether.

[IMAGE 3: Probe check]

Shot: meat probe inserted into the thickest part of the shoulder on the spit, display showing the reading

Alt text: meat probe checking the internal temp of a pork shoulder on the spit

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How to Get Good Crackling on the Spit

The spit has a real advantage here. Because the shoulder keeps turning, every bit of skin gets its share of the heat, so you don't end up with one burnt side and one leathery side.

• Keep the skin dry, all the way. No basting, no spritzing on the skin. Wet skin steams, dry skin blisters.
• Render first, blast last. Medium heat for most of the cook melts the fat under the skin. For the final 20 to 30 minutes, lift the heat by adding a batch of fresh hot coals or dropping the spit a notch closer to the fire.
• Watch it at the end. The skin will bubble, puff and turn golden. Once it's blistered all over, you're done. Crackling goes from perfect to burnt quickly.
• Rescue chewy patches. If a few spots won't crackle, slice the skin off in one sheet while the meat rests and crisp it skin-side down on a grill plate over hot coals for a few minutes.

[IMAGE 4: Crackling close-up]

Shot: tight close-up of blistered, golden crackling on the shoulder, just off the spit

Alt text: close-up of crisp blistered pork crackling after spit roasting

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Carving and Serving at Camp

Rest the shoulder for 20 to 30 minutes before carving. Cover it loosely, not tightly, or the crackling will steam and soften. The internal temperature will climb a few more degrees while it rests.

Snip the twine, lift the crackling off in one piece and break it into shards, then slice the meat across the grain about 1cm thick. Pile it into soft rolls with coleslaw and apple sauce, and make sure the crackling makes it to the plates before the cook eats it all.

[IMAGE 5: The carve]

Shot: carving the rested shoulder into thick slices on a board at camp, crackling shards to the side

Alt text: sliced spit roasted pork shoulder with crackling on a camp carving board

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Pork Shoulder on a Spit: Quick Answers

How long does it take to spit roast a 5kg pork shoulder?

Around three to four hours over steady, medium charcoal heat. Always go by the internal temperature rather than the clock.

What internal temp should pork shoulder reach on the spit?

For slicing, 75 to 80°C in the thickest part, with rolled roasts reaching at least 75°C in the centre. For pulled pork, go to 90 to 95°C.

Why didn't my crackling crackle?

It's almost always moisture: skin that wasn't dried properly, basting that wet the skin, or not lifting the heat for the final stretch.

Can I spit roast pork neck instead?

Yes. It's well marbled and cooks faster than a whole shoulder, but it's usually sold skinless, so don't expect crackling.

Ready to put pork on the menu at your next camp?

Check out the Auspit spit rotisserie range and find the setup that suits your trips.

A spit roast pork shoulder is low effort and high reward. Prep it the night before, get your coals right, let the Auspit do the turning and trust your probe. Then save the last half hour for cranking the heat and watching that crackling blister. Your campsite neighbours will be wandering over before you've finished carving.