Which practice is recommended for storing perishable foods in the refrigerator?

Storing perishable foods in airtight containers is essential for maintaining food safety and quality. This practice helps to prevent contamination from other foods, minimizes the risk of cross-contamination, and limits moisture loss, which can degrade the quality of the food. Airtight containers also help to preserve the freshness and flavor of the food by reducing exposure to air, which can lead to spoilage, off odors, and freezer burn in the case of frozen items.

In contrast, leaving food uncovered could expose it to bacteria, odors, and contaminants in the fridge. Placing items on the top shelf may not be the best practice since warmer air tends to rise, potentially leaving foods on that shelf at a less ideal temperature for preservation. Combining all foods in one bag can risk cross-contamination, particularly if some items in the bag are raw or could leak, such as raw meats, which can contaminate ready-to-eat items. Thus, using airtight containers is a recommended practice for safe storage of perishable foods.