A butane burner is a portable cooking device that uses butane gas as fuel. It typically consists of a burner head, a fuel canister, and a control valve. These burners are popular for outdoor activities like camping and backpacking because they are lightweight and easy to use. Butane burners provide a steady flame for cooking and can reach high temperatures quickly. They are often used for boiling water, cooking meals, or heating food. Safety features, such as flame control and windshields, make them suitable for various environments, but users should always follow safety guidelines when operating them.