I've read a few people saying don't cook a whole chicken on low in a slow cooker because it doesn't get hot enough to kill any bacteria. I've got a chicken currently in ours, it was on high for an hour, and then I turned it on low for an hour while I was doing the school run. I've just stuck a poultry thermometer in it and the internal temperature is a shade over 83 degrees on low. Does that mean it's ok to leave it on low? I don't want to over cook it and have dry chicken, but like wise I don't want to die of campylobacter poisoning!