Pork cuts for low & slow — which ones and why

The pork shoulder — called Boston Butt in America — is the upper part of the front leg, from the neck to the shoulder blade. A heavily used muscle group, extremely high collagen content, rich fat marbling throughout the meat. At 110–120°C for 8–12 hours, all that collagen converts to gelatin. The meat falls apart and is perfect for pulling. The Boston Butt is the most forgiving low & slow cut — it has an enormous fat buffer that helps manage the cooking process during minor temperature errors.

Target temperature for pulling: 90–95°C internal. More: Pork on the BBQ — all recipes.

The lower part of the front leg, including the radius bone. More connective tissue than the Boston Butt, less fat marbling. Suitable for pulled pork but yields less fat and a less juicy result. Cheaper than the Boston Butt — a good alternative if budget is a concern.

Spare ribs come from the lower part of the rib cage — the belly area. They are larger, meatier, and fattier than baby back ribs. Their higher fat content makes them ideal for the 3-2-1 method — the fat slowly renders, keeping the meat juicy during the 6-hour session. Cooking time: 5–6 hours at 110–120°C. More: The 3-2-1 method for spare ribs.

Baby back ribs are located higher on the rib cage — on the back, connected to the loin. They are narrower, more tender, and leaner than spare ribs. Due to their lower fat content, they dry out more quickly if cooked for too long. Cooking time: 4–5 hours at 110–120°C. The 3-2-1 method also works, but use 2-2-1 to prevent drying out.

St. Louis ribs are spare ribs where the cartilage and breastbone edges have been trimmed to create a rectangular, uniform slab. They cook more evenly than untrimmed spare ribs — no protruding pieces that cook faster than the rest. The favorite competition cut for uniformity and presentation.

Pork belly is the cut from which bacon is made — alternating layers of fat and meat, high fat content, relatively little connective tissue. Low & slow (150–160°C, 2.5–3 hours) yields a soft, tender texture with melting fat. High direct heat at the end creates a crispy exterior. The combination method — indirect followed by direct — gives the best result: melting on the inside, crispy on the outside. More: Pork Belly on the BBQ — recipe.

These cuts come from the loin — little-used muscle, low collagen content, naturally tender. Low & slow makes them dry and mushy. Pork tenderloin is ready in 20 minutes at 180–200°C. Chops and cutlets take 10–15 minutes on direct heat. Internal temperature for pork: at least 63°C (slightly pink) to 70°C (well-done). More: Direct vs indirect heat — when to use what?