Which temperature range is considered ideal for a freezer?

• A. -18°C to -21°C
• B. +1°C to +4°C
• C. -15°C to -18°C
• D. -21°C to -24°C

Answer: (A)

The ideal temperature range for a freezer is between -18°C to -21°C. This temperature range is optimal for preserving the quality and safety of frozen food. At these temperatures, the growth of bacteria and chemical processes that can cause food spoilage are significantly slowed down. Additionally, maintaining food at or below -18°C helps to ensure that it retains its texture, flavor, and nutritional value over time.

Other temperature ranges presented may not provide the same level of preservation. For instance, temperatures above -18°C may allow for a higher risk of spoilage and freezer burn, while temperatures below -21°C may be unnecessarily cold and could lead to a higher energy consumption without any additional benefits in food preservation. Thus, -18°C to -21°C is widely recognized and recommended as the ideal freezing range for optimal food storage.