Grain separation is the process of removing unwanted materials from harvested grains, such as straw, chaff, and dirt. This ensures that the final product is clean and suitable for storage or sale. Various methods, including mechanical and manual techniques, are used to achieve effective separation. In agriculture, grain separation is crucial for maintaining the quality of crops like wheat, rice, and corn. Efficient separation not only improves the market value of the grains but also enhances their shelf life by reducing the risk of spoilage and contamination.