What are signs that food has been contaminated during storage?

Identifying Contamination

When inspecting stored food, look for an off smell or taste, which can indicate spoilage. Check for mold or yeast growth, which can appear as white, green, or black patches on the surface of the food. If you notice any visible signs of pests or insect infestation, such as holes, tracks, or webbing, discard the food immediately. For canned goods, check for swelling or bulges in the can, which can indicate a loss of vacuum seal or contamination.

Proper Food Storage Techniques

To prevent contamination during storage, follow proper food handling and storage techniques. Store food in airtight, moisture-proof containers to prevent moisture and pests from entering. Keep food at a consistent refrigerator temperature of 40°F (4°C) or below to slow down bacterial growth. When storing dry goods, such as grains or flour, use glass or plastic containers with tight-fitting lids to prevent pests from entering.

Common Sources of Contamination

During a pandemic or quarantine, common sources of food contamination can include flooded power outages, inadequate refrigeration, and exposure to pests or insects. To minimize these risks, prioritize food storage in areas with consistent temperature and humidity control. Use dehumidifiers or fans to maintain a dry storage environment. Keep stored food away from potential sources of contamination, such as pets or livestock, and avoid cross-contamination between different types of food.