Grain silos are tall, cylindrical structures used to store bulk grains like wheat, corn, and barley. They help protect the grains from pests, moisture, and spoilage, ensuring that the food supply remains safe and stable. Silos can be made of various materials, including metal and concrete, and are often found on farms or near processing facilities. These structures are essential in the agricultural industry, allowing farmers to store their harvest until it can be sold or processed. By keeping grains in a controlled environment, grain silos play a crucial role in maintaining the quality and availability of food products.