Ultrafine grinding is a process that reduces materials to a very small particle size, typically below 10 micrometers. This technique is commonly used in various industries, including pharmaceuticals, food, and minerals, to enhance the properties of materials, such as solubility and reactivity. The process often involves specialized equipment, such as ball mills or jet mills, which use mechanical forces to break down particles. By achieving a finer particle size, ultrafine grinding can improve the performance of products, making them more effective in applications like coatings, pigments, and catalysts.