Which condition should be avoided to protect foods in dry storage?

Excessive moisture in dry storage is a crucial condition to avoid because it can lead to several problems that directly affect food safety and quality. When moisture levels are high, it creates an environment conducive to mold growth and bacterial proliferation, which can spoil food and pose health hazards. Grains, flour, and other dry goods are particularly vulnerable to moisture, as it can cause clumping, spoilage, and attract pests. Therefore, maintaining low humidity levels is essential to ensure that dry foods remain safe, dry, and stable for long-term storage.

Other conditions, such as high temperatures, can also pose risks, but excessive moisture specifically leads to an immediate deterioration in the integrity of dry foods. Low lighting might not significantly impact food safety in dry storage, but it does not have the same direct deleterious effect as moisture. Pest intrusion is certainly an issue to address in food storage, but the immediate concern with dry foods is the presence of moisture which can drastically compromise their safety and quality.