How to Smoke Pork Spare Ribs
Pork · Smoking · Updated 2026-08-11
St. Louis or full spares smoked until the bones wiggle and bark sets.
How long to smoke Pork Spare Ribs
Smoke at 225°F for roughly 90 minutes per pound, until the internal temperature reaches 195°F. Then rest 15 minutes.
| Weight | Smoker temp | Estimated time |
|---|---|---|
| 2 lb | 225°F | 3 hrs |
| 3.5 lb | 225°F | 5 hrs 15 min |
| 5 lb | 225°F | 7 hrs 30 min |
Smoking times vary with weather, your smoker and the stall — always cook to temperature, not the clock.
Calculate exact time → Temperature chart
Time is a planning range
Estimated window: weather, starting temperature, thickness, airflow, wrapping and lid opening can shift the cook by 20% or more.
Start checking early: begin probing before the calculated finish and stop by temperature and texture, not by the clock.
Safety vs ideal texture
| Safety context | Confirm the food-specific safe minimum separately from a tenderness target. |
|---|---|
| Recipe target | 195°F |
| Why they may differ | This high finish temperature is mainly a tenderness target for collagen-rich meat, not the minimum temperature at which the meat first becomes safe. |
| Rest | 15 minutes before slicing or pulling |
What changes the cook time?
- Thickness and shape matter more than weight alone for many cuts.
- Cold, wind and repeated lid opening extend the cook.
- Wrapping speeds the cook but softens bark.
- Thermometers should be checked in more than one spot and away from bone.
Frequently asked questions
How long does it take to smoke pork spare ribs?
At 225°F, plan 90 minutes per pound — about 5 hrs 15 min for a 3.5 lb pork spare ribs at 225°F. Cook until it reaches 195°F internal.
What temperature do you smoke pork spare ribs at?
A smoker temperature of 225°F works well, pulling the meat at an internal temp of 195°F.
What internal temp for pork spare ribs?
Target 195°F internal for pork spare ribs.