The survival time of Salmonella bacteria on a countertop can vary depending on various factors such as temperature, humidity, and surface type. In general, Salmonella can survive for several hours to several days on a countertop surface.
Under favorable conditions, Salmonella can survive for up to 4 hours on a porous surface like wood and up to 72 hours (3 days) on non-porous surfaces like stainless steel or plastic. However, it's important to note that these are general estimates and not precise figures, as the survival time can be influenced by factors such as the initial bacterial load, the presence of organic matter, and the effectiveness of cleaning and disinfection practices.
To prevent the potential spread of Salmonella or other harmful bacteria, it's essential to practice proper food safety measures. This includes cleaning and disinfecting countertops regularly, especially after handling raw meats, poultry, or eggs, and ensuring that food preparation areas are kept clean and hygienic. It's also crucial to cook foods thoroughly to kill any harmful bacteria that may be present.