How long to cook a 15 pound pork roast in a crock pot?

To cook a 15-pound pork roast in a crock pot, it typically takes about 8 to 10 hours on low heat or 5 to 7 hours on high heat. It's important to ensure the internal temperature reaches at least 145°F for safe consumption. For best results, allow the roast to rest for a few minutes before slicing. Always check your specific crock pot's guidelines, as cooking times can vary.