Why pork shoulder suits the slow cooker
Pork shoulder (sold as pork butt, Boston butt or picnic roast, depending on the store) is a well-worked, fatty cut with a lot of connective tissue. Quick cooking leaves it tough. Long, gentle cooking gives that tissue time to soften, which is why it ends up tender enough to pull apart with a fork. It is also inexpensive and makes a lot of meat, which helps with family budgets and meal prep.
Other cuts behave very differently. Lean cuts such as loin and tenderloin dry out if cooked as long as shoulder. If you are working with those, see pork loin in the slow cooker and pork tenderloin in the slow cooker instead.
Which cooking method is best for pork shoulder?
Several methods work: slow cooker, oven, smoker, Instant Pot. The slow cooker is the easiest because it needs little attention and holds a steady low heat. The trade-off is that it does not brown the meat or build a crust. Searing first, or finishing the shredded meat under a broiler, adds the flavor a slow cooker cannot produce on its own. For a Latin-style shoulder cooked under pressure, see Puerto Rican Instant Pot recipes.
Time: how long to cook pork shoulder
Cook times vary with the size and shape of the roast, how full the slow cooker is, and how hot your particular model runs. Treat the numbers below as rough starting points and rely on texture and temperature to decide when it is done.
| Roast size (approx.) | Low setting | High setting |
|---|---|---|
| 3 to 4 lb | roughly 8 to 10 hours | roughly 5 to 6 hours |
| 5 to 7 lb | roughly 9 to 11 hours | roughly 6 to 8 hours |
How long should you cook a 7 pound pork shoulder? A roast this size generally needs the longer end of the range, often 10 hours or more on low. A very large roast may not fit comfortably in smaller slow cookers, and cutting it into two or three large chunks helps it cook more evenly. Check your slow cooker’s manual for its capacity and for any guidance on filling it.
Low is usually preferred for shoulder because the slower heat tends to give more tender results. High works when you are short on time. If the meat is not tender when the time is up, it usually just needs longer rather than less.
Temperature: when does pork shoulder fall apart?
Pork is considered safe to eat at an internal temperature of 145°F (63°C) followed by a rest, according to USDA guidance. Shoulder cooked to that temperature is safe but is usually still tough. For pulling, most cooks aim much higher, commonly in the range of 195°F to 205°F (about 90°C to 96°C), where the connective tissue has broken down. A common test is to push a fork or a thermometer probe into the meat: it should go in with little resistance.
Use a digital thermometer and check in a few places, avoiding the bone. Ovens, slow cookers and roasts all vary, so the thermometer is more reliable than the clock.
Do you need to add liquid?
Not much. Pork shoulder releases a lot of juice as it cooks, and the lid keeps that moisture in the pot. Many cooks add around half a cup to one cup of liquid, or simply rely on sliced onions under the meat. Too much liquid boils the meat rather than roasting it gently, and dilutes the flavor of the cooking juices.
Options for the liquid:
- Chicken or beef broth, for a savory base
- Apple juice or cider, for a slightly sweet flavor that suits pulled pork
- Beer or a splash of vinegar, for tang
- Water, if the rub or sauce is doing the flavoring
If you plan to make barbecue pulled pork, you can add a little liquid up front and stir in the sauce after shredding. See slow cooker BBQ pulled pork for that recipe.
Step by step
- Trim and season. Trim any very thick fat cap if you wish, leaving a thin layer. Pat the meat dry and rub it generously with salt and your chosen spices. Seasoning the night before gives more flavor.
- Optional sear. Brown the roast in a hot skillet for a few minutes per side. This adds flavor but is not required.
- Set it up. Put sliced onion and garlic in the bottom of the slow cooker, set the pork on top and add a small amount of liquid.
- Cook covered. Keep the lid on as much as possible. Each peek lets out heat and adds to the cooking time.
- Test for doneness. The meat should shred easily and a probe should slide in with little resistance.
- Rest and shred. Rest the roast for 15 to 30 minutes, remove the bone and large pieces of fat, then shred with two forks.
- Moisten. Skim fat from the cooking liquid and toss a few spoonfuls back through the shredded meat.
Shoulder, butt and bone-in versus boneless
The upper part of the shoulder is usually labeled pork butt or Boston butt, and the lower part picnic shoulder. Both work in the slow cooker. Butt is a little more marbled and is the usual choice for pulled pork. Bone-in roasts often take somewhat longer than boneless ones of the same weight, but the bone is easy to remove once the meat is tender.
Ideas for the finished pork
- Pulled pork sandwiches with barbecue sauce, covered in our BBQ pulled pork recipe
- Crisp-edged tacos, as in slow cooker carnitas
- Rice bowls, quesadillas, baked potatoes or pasta
- Stirred into soups, chili or fried rice
Storing, freezing and reheating
Cool leftovers promptly and refrigerate them in shallow, covered containers. USDA guidance suggests eating cooked leftovers within three to four days. For longer storage, freeze portions with a little of the cooking juices to help keep them moist, and reheat until steaming hot. Flat freezer bags thaw and reheat faster, which suits meal prep.
Troubleshooting
- Still tough: It needs more time. Keep cooking and check again in an hour or so.
- Dry: The meat may have been overcooked in a very hot slow cooker, or shredded and left without juices. Moisten with the cooking liquid.
- Bland: Season more heavily, and add salt, acid or sauce after shredding.
- Watery juices: Reduce the juices in a saucepan before returning them to the meat.
Frequently asked questions
Can I cook pork shoulder from frozen? Food safety guidance generally recommends thawing meat before slow cooking, because a frozen roast may spend too long in the temperature range where bacteria can grow. Thaw it in the refrigerator first.
Can I cook it on high the whole time? Yes, but low usually gives more tender results, and high needs closer attention.
Can I leave it on warm overnight? Keeping the cooked meat hot is acceptable in the short term, but it is best to refrigerate leftovers within two hours of cooking.