Hotplate Stirrer is a device used to create a rotating magnetic field. This stirrer creates a rotating field based on a rotating magnet bar or a plate containing the rotating magnet. The main function of a stirrer is to agitate the liquid for speeding up the reactions or improving mixtures. Hotplate Stirrer is available in some varieties such as Portable Hotplate Stirrer, Hotplate Stirrer, Hotplate Stirrer, and much more. The device spins a small cylinder at various speeds and is ideal for continuous stirring for long periods. The device has an electromagnet at its base and a stir bar that goes into your flask. These stirrers should be used with glass or other non-metal beakers to prevent interference with the magnetic field.