How to Smoke Pork St Louis Ribs: Cook Time, Temperature, and Technique
Complete guide to smoking pork st louis ribs — cook time per pound, internal temperature target (200°F), wrap timing, technique, and common mistakes. Cooks 2–4 lb covered.
Last updated 2026-06-09 · By SmokerCookTime editorial team
Quick answer
Pork st louis ribs smokes at 225°F for about 75 minutes per pound. A 2–4 lb cut takes 2h 30m–5h plus a 15-minute rest. Pull at 200°F internal. Wrap in butcher paper or foil at 170°F internal to push through the stall.
At a glance
- Smoker temp: 225°F (standard)
- Cook rate: ~75 minutes per pound
- Weight range covered: 2–4 lb
- Internal target: 200°F
- Wrap at: 170°F internal
- Rest: 15 minutes minimum
Cook time by weight
All times below are estimates — pull at internal temperature, not by the clock.
| Weight | @ 225°F | @ 250°F | @ 275°F | Total (225°F + rest) |
|---|---|---|---|---|
| 2 lb | 2h 30m | 2h 15m | 2h 2m | 2h 45m |
| 3 lb | 3h 45m | 3h 22m | 3h 4m | 4h |
| 4 lb | 5h | 4h 30m | 4h 5m | 5h 15m |
About pork st louis ribs
St. Louis ribs are spare ribs trimmed of the sternum, cartilage tips, and rib tips, leaving a neat rectangular rack with consistent thickness end-to-end. They're not from a different part of the pig — they're just spare ribs with the awkward bits removed. The result cooks more evenly than untrimmed spares because every bone has similar meat coverage, and the rack lies flat on the smoker. This is the rib most competition cooks use because consistency is everything in BBQ judging.
Buying pork st louis ribs
Many supermarkets and butchers sell pre-trimmed St. Louis cut racks at a premium over untrimmed spares. Or buy spares and trim them yourself — the rib tips trimmed off make great snacks. Look for the same quality signals as spare ribs: meaty bones, pink-red color, consistent coverage.
Technique and pitfalls
Same workflow as spare ribs: membrane removal, rub, smoke at 225°F over hickory. The 3-2-1 method works well, though many pitmasters prefer 3-1.5-0.5 for St. Louis cuts because the trimmed shape cooks faster. Bend test for doneness. Final glaze in the last 30 minutes if saucing.
Internal temperature and wrap timing
Pull the pork st louis ribs when the thickest part hits 200°F on a probe thermometer. Probe-tender — the probe slides in like warm butter — is the more reliable signal than temperature alone; some cuts finish a few degrees above or below the target depending on the individual piece.
Wrap the pork st louis ribs in pink butcher paper or foil when the internal temperature reaches 170°F. Wrapping stops evaporative cooling and pushes the meat through the stall — that 4–6 hour plateau around 165°F where temperature stops climbing. Pink butcher paper preserves more bark than foil; foil is faster.
Best wood for pork st louis ribs
Hickory, apple, cherry, pecan — same as spare ribs.
Common mistakes
Overcooking — the trimmed rack cooks faster than a full spare rack. Starting the bend test too late. Saucing throughout the cook instead of at the end.
Recommended pitmaster books
Franklin Barbecue: A Meat-Smoking Manifesto (Spiral Bound)
The bible of central Texas brisket. Aaron Franklin's full method — fire management, salt-and-pepper rub, the wrap, slicing. Spiral-bound so it stays flat at the smoker.
Franklin Smoke: Wood, Fire, Food (Spiral Bound)
Franklin's wood-pairing reference plus 70+ recipes beyond brisket. The best book for understanding how different woods change the cook.
Smokin' with Myron Mixon (Spiral Bound)
Competition recipes from a four-time world BBQ champion. Brisket, ribs, pork shoulder, chicken — Mixon's exact rubs and injections. Spiral-bound and grease-resistant.
Yellowstone: The Official Dutton Ranch Family Cookbook (Spiral Bound)
Chuckwagon-style cooking inspired by the Yellowstone ranch — smoked meats, cast-iron classics, outdoor cooking. The crowd-pleaser of the four.
Frequently asked
How long does it take to smoke pork st louis ribs at 225°F?
About 75 minutes per pound at 225°F. A 2 lb takes ~2h 30m; a 4 lb takes ~5h. Add a 15-minute minimum rest. Always pull at internal temperature, not by clock.
What internal temperature should pork st louis ribs reach?
Pull at 200°F internal temperature, measured in the thickest part with a probe thermometer. Do not rely on cooking time alone.
Should I wrap pork st louis ribs during the smoke?
Yes — wrap at 170°F internal in butcher paper or foil to push through the stall.
How long should pork st louis ribs rest after smoking?
Rest at least 15 minutes wrapped, ideally longer for larger cuts. Resting redistributes juices and finishes carryover cooking. Slicing early dries the meat.
What is the best wood for smoking pork st louis ribs?
Hickory, apple, cherry, pecan — same as spare ribs.