what is sieving

Sieving is a process of separating particles of different sizes using a sieve, which is a device with a screen such as a woven mesh or net or perforated sheet material. The sieve retains larger particles, while smaller particles pass through the holes in the screen. Sieving is a simple and widely used technique for separating particles of different sizes in various industries, including food, construction, and agriculture. For example, sieving is used in flour mills to remove impurities such as husks and stones from wheat. In cooking, a sifter is used to separate and break up clumps in dry ingredients such as flour, as well as to aerate and combine them. A strainer, on the other hand, is a form of sieve used to separate suspended solids from a liquid by filtration. Sieving is a principle of size sorting, where solids are separated into two or more fractions based on differences in size.