What is the maximum recommended time for storing leftovers in a refrigerator?

The maximum recommended time for storing leftovers in a refrigerator is indeed 3-4 days. This recommendation is based on food safety guidelines that aim to minimize the risk of foodborne illnesses. In this period, food should remain safe to eat if it has been stored properly in a sealed container at a consistent refrigerator temperature of 40°F (4°C) or below. After 3-4 days, the likelihood of bacterial growth increases, even at refrigerated temperatures, making the food less safe to consume.

Moreover, some foods may not maintain their quality after this time, as flavors and textures can deteriorate, even if they are still technically safe to eat. Following this guideline helps ensure both safety and quality when consuming leftovers.