The innovative engineers at Keurig® have crafted a custom thermal carafe, specially designed for use with the Keurig® Bolt™ brewer. The brewer contains a sensor system that determines when the thermal carafe is securely in place, the flip lid is open, and it is safe for brewing to begin, preventing unnecessary spills and mess. If the carafe is removed or incorrectly inserted, the brewing process will stop immediately. Large carafe is perfect for brewing beverages at the office.