Final answer:
The safe storage time for ground beef and poultry at 40°F or below is generally 1-2 days. If the temperature exceeds 40°F for over two hours, the food may become unsafe to eat. Always use a thermometer to monitor fridge temperature and refrigerate perishables promptly.
Step-by-step explanation:
Safe Storage Time for Ground Beef/Poultry
The safe cold storage time for ground beef or poultry when refrigerated at a temperature of 40°F or below is crucial for inhibiting bacterial growth. Generally, this refrigeration temperature should not exceed 1-2 days for ground beef and up to 1-2 days for poultry according to the USDA, but always check for the latest guidelines. Failure to maintain the cold storage temperature can lead to an increase in bacteria, as they tend to multiply rapidly between 40°F to 140°F. Therefore, it's essential to ensure your refrigerator maintains the right temperature by using a thermometer, especially during a power outage. If the temperature rises above 40°F for two hours or more, bacteria can grow to unsafe levels, and the food should not be consumed.
Remember, instability in the cold chain, such as prolonged exposure to temperatures in the 'danger zone' (between 40°F and 140°F), results in rapid microbial growth, possibly leading to foodborne illness. To mitigate this risk, refrigerate perishable leftovers as soon as possible and never leave them out for more than two hours. It's important to note that freezing meats at temperatures below 0°F (-18°C) halts microbial growth and can keep the food safe indefinitely, although quality may diminish over time.