Sieving techniques are methods used to separate particles of different sizes in a mixture. This process typically involves passing the mixture through a mesh or screen, allowing smaller particles to pass through while retaining larger ones. Commonly used in various industries, sieving helps in quality control and material preparation. There are several types of sieving techniques, including mechanical sieving, vibratory sieving, and air jet sieving. Each technique varies in efficiency and application, depending on the material being processed. These methods are essential in fields such as pharmaceuticals, food processing, and mining.