The pork is cooked when a fork can easily be inserted into the meat and used to pull it apart. My other favorite test is using the pork bone. If your cut of pork has a bone in it, use a pair of tongs to try and remove the bone from the meat. If it lifts out easily, it’s done. If it won’t come out, put the lid back on the Crock Pot and cook for another 30 minutes before trying again.