Grain mites are tiny arthropods that belong to the family Acaridae. They are commonly found in stored grains, flour, and other dry food products. These mites thrive in warm, humid environments and can reproduce rapidly, leading to infestations that may spoil food. While grain mites are not harmful to humans, they can cause allergic reactions in some individuals. They feed on organic materials, including mold and decomposing matter, which can lead to contamination of food supplies. Proper storage and regular cleaning can help prevent grain mite infestations in homes and food storage areas.