Can you use half and half that sat out all night?

It's not safe to use half and half that has sat out all night, as it can become a breeding ground for harmful bacteria. Dairy products should be refrigerated and consumed within two hours of being left out at room temperature. If it's been more than two hours, it's best to discard it to avoid the risk of foodborne illness. Always prioritize food safety when it comes to perishable items.