Yes, it is generally safe to leave a slow cooker on low for up to 12 hours. Slow cookers are designed to cook food at low temperatures over an extended period, and they are specifically built to handle long cooking times.
Most slow cooker recipes recommend cooking on low heat for 6 to 10 hours. Cooking for 12 hours on low is still within the safe range, and many slow cooker recipes can handle this duration without any issues. However, it's always essential to follow the specific cooking instructions and recommended cooking times for the recipe you are using.
Here are a few tips to ensure safety when using a slow cooker:
Use the right size: Fill the slow cooker to at least half full but no more than two-thirds full for best results.
Use the appropriate ingredients: Ensure that the meat and other perishable ingredients are fresh when you start cooking.
Preheat if necessary: Some slow cooker models may require preheating before adding the ingredients.
Be cautious with dairy and seafood: Dairy products and seafood can be more sensitive to prolonged cooking, so add them towards the end of the cooking time, if possible.
Check the manufacturer's instructions: Refer to the user manual of your slow cooker to understand any specific safety guidelines or recommendations.
Remember that while slow cookers are generally safe when used correctly, it's always a good idea to exercise caution and common sense when it comes to food safety. If you have any doubts about the quality or safety of the food after cooking, it's best to discard it to avoid any potential health risks.