👉 A sifter is a device used to sift or collect fine particles from a liquid or solid substance. It consists of a tube with a small opening at one end that collects the fine particles and a larger opening at the other end that allows the solids to be removed. The size of the particle in the sifter can vary, but most commonly they are between 0.5 mm (1/4 inch) and 2 mm (1/8 inch).