Vacuum insulated thermos. The interior of the jar is made of BPA-free stainless steel (does not alter the flavour). The lid closes automatically after each use so that the desired temperature is maintained longer. It also has a button on the top that allows you to open the lid when serving with just one hand. The sleek design of the Bistro makes it the ideal thermos for drinking iced tea in the garden or simply keeping herbal tea hot on the kitchen table. It has a capacity of up to 1.1 L