Purpose Anti-caking agents keep solid food free-flowing. Powdered foods often clump together and change textures when they absorb water, but anti-caking agents help to prevent this from taking place. Source Many anti-caking agents are derived from natural sources, such as silicates — minerals that are among the most common on earth. Calcium silicate is a common anti-caking agent found in table salt. It helps to absorb both oil and water to reduce salt particles from clumping together. Use Table salt, flours, sugar products, powdered milk, grated cheese, cake mixes, and egg mixes