Is it ok to eat a beef roast left out over night as long looks and smells is thoroughly cooked for several hours at high temperature?

_Why?_

> * Food safety guidelines recommend that perishable food, including beef roasts, should not be left out at room temperature for more than two hours. This is because bacteria can grow rapidly at temperatures between 40°F and 140°F, which is the "danger zone" for food safety.

>* Leaving cooked beef roast out overnight, even if it was thoroughly cooked at a high temperature, increases the risk of bacterial growth and potential foodborne illness. Bacteria can survive high temperatures and may not be completely eliminated during cooking. They can multiply rapidly when the roast is left at room temperature.

>* Eating food contaminated with these bacteria can cause food poisoning symptoms, such as nausea, vomiting, abdominal cramps, and diarrhea. In severe cases, foodborne illness may lead to hospitalization or even death.

>* Refrigerating leftover beef roast promptly after cooking is crucial to slowing down bacterial growth and maintaining its safety. Cooked beef should be cooled and refrigerated within two hours of being removed from the oven.

>* To ensure the safety of leftover beef roast, it is best to follow proper food handling practices, including thorough cooking, prompt refrigeration, and not leaving it out at room temperature for extended periods of time.