Thermoses with pump

Pump

— lid (classic or threaded) with built-in pump. Most often, this pump is activated by a special button: when you press this button, a portion of liquid comes out of the spout, while the thermos does not need to be tilted. However, such devices are quite complex and cumbersome, so it makes sense to use them only in thermoses-jugs (see "Type"): the size and weight of the pump is small compared to the dimensions of the jug itself, and tilting such a thermos can be difficult — it is easier to use the pump.