Which method is described as a way to prevent deterioration?

• A. Freezing all products immediately upon receipt
• B. Using preservatives to extend shelf life
• C. Controlling air circulation and relative humidity
• D. Storing at high temperatures to kill microbes

Answer: (C)

Maintaining the right environmental conditions is key to preventing deterioration of stored foods. Controlling how air moves and keeping relative humidity at appropriate levels helps prevent moisture buildup, condensation on products, and the growth of spoilage organisms like mold and bacteria. When air circulation is good and humidity is kept in check, moisture doesn’t accumulate on surfaces or inside packaging, which slows enzymatic activity, microbial growth, and chemical spoilage. This approach preserves quality—texture, flavor, color, and safety—across a wide range of products without needing additives or drastic processing.

Other methods can be helpful in certain contexts but aren’t as universally reliable. Freezing halts deterioration for many products but isn’t suitable for all items and requires constant energy and proper thawing practices. Using preservatives extends shelf life but isn’t appropriate for every product and may face regulatory or consumer acceptability concerns. Storing at high temperatures to kill microbes is energy-intensive, can damage product quality, and often doesn’t reach all contamination within the product.