A boil kettle is a kitchen appliance designed to heat water quickly. It typically features a heating element that brings water to a boil, making it ideal for preparing hot beverages like tea or coffee. Most boil kettles have an automatic shut-off feature for safety, ensuring they turn off once the water reaches the boiling point. Boil kettles come in various materials, including stainless steel, glass, and plastic. Many models also offer temperature control settings, allowing users to heat water to specific temperatures suitable for different types of tea or other beverages. This versatility makes them a popular choice in many households.