Leaving Cheddar cheese out at room temperature all night is generally not recommended, as it can lead to potential food safety concerns. Cheese, like most dairy products, is perishable and can spoil if not stored properly.
At room temperature, bacteria can grow rapidly on the cheese, increasing the risk of foodborne illnesses. The warmer temperatures allow bacteria to multiply, and some bacteria can produce toxins that may not be visibly detectable but can still cause illness.
While many types of cheeses are more tolerant of being left at room temperature for short periods, leaving Cheddar cheese out all night is not ideal. If you find that you accidentally left the cheese out overnight, it's better to err on the side of caution and discard it to avoid any potential health risks.
To ensure the safety and quality of Cheddar cheese, it's best to store it in the refrigerator at a temperature below 40°F (4°C). Refrigeration helps slow down the growth of harmful bacteria and extends the shelf life of the cheese. If properly stored, Cheddar cheese can stay fresh and safe to eat for an extended period. If you notice any signs of spoilage, such as an off smell, unusual texture, or mold growth, it's best to discard the cheese.