Why are pork products less suitable for long-term freezing?

• A. Higher amounts of unsaturated fat
• B. Lower amounts of unsaturated fat
• C. Higher moisture content
• D. Denser muscle fibers

Answer: (A)

Long-term freezing challenges quality mainly from chemical changes, not just microbial growth. Unsaturated fats are more prone to oxidation when exposed to oxygen, light, and even stored at freezing temperatures over time, leading to rancid flavors, off odors, and color changes. Pork tends to have a higher unsaturated fat content, so it experiences more lipid oxidation during extended frozen storage, making it less suitable for long-term freezing compared with meats that have lower unsaturated fat. While higher moisture or denser muscle fibers can affect texture and water loss, they are not the primary drivers of the quality decline seen with extended freezing in pork.