Keeping lunch meats past their use-by date increases the risk of which foodborne illness?

Keeping lunch meats past their use-by date significantly increases the risk of Listeriosis. This illness is caused by the bacterium Listeria monocytogenes, which can grow in refrigerated foods, including deli meats and hot dogs. Unlike many other foodborne pathogens, Listeria can thrive at low temperatures, making it a particular concern for ready-to-eat meats that may not be cooked prior to consumption. Consuming these products after their use-by date can lead to higher chances of consuming sufficient quantities of Listeria to cause illness.

The use-by date indicates the period until which the product is expected to maintain its safety and quality when stored properly. After this date, the risk of bacterial growth increases, especially for sensitive populations such as pregnant women, the elderly, and immunocompromised individuals, who are at a greater risk for Listeriosis and may suffer more severe consequences from infection.

Understanding the relationship between expiration dates and food safety highlights the importance of adherence to these guidelines to minimize the risks associated with foodborne illnesses.