What is the effective operating temperature for a refrigerator storing perishables?

The effective operating temperature for a refrigerator storing perishables is ideally at or below 40 degrees Fahrenheit. This temperature range is essential because it helps to slow down the growth of bacteria and molds, which can spoil food items and compromise their safety. Refrigerating perishables at temperatures above 40 degrees can lead to increased risk of foodborne illness.

While 45 degrees may seem reasonable, it is slightly above the recommended maximum temperature. This can be problematic as certain perishables, especially meats, dairy products, and prepared foods, require stricter temperature controls to ensure their safety and freshness. Temperatures at 55 degrees and higher are not suitable for preserving perishables as they greatly increase the risk of spoilage and bacterial growth. Thus, maintaining a refrigerator temperature of 40 degrees or lower is critical for food safety and quality.