A sand bath is a common piece of laboratory equipment made from a container filled with heated sand. It is used to evenly heat another container, most often during a chemical reaction. Sand baths have a number of advantages compared with simply using a hotplate. This includes: Heat conducted directly into the sides of the heated vessel. Because of this, the vessel is heated a lot more evenly than if the heat source was only coming from below.

• Excellent heat efficiency and electrically safe.
• Overheating is prevented by a safety thermostat.