Airpot

An airpot is a vacuum insulated carafe designed to keep beverages hot or cold for extended periods. It functions similarly to a thermos but typically features a pump mechanism for dispensing liquid. The inner and outer walls of an airpot are separated by a vacuum, which significantly reduces heat transfer through conduction and convection. The outer casing is usually made of plastic or stainless steel, while the inner liner is often glass or stainless steel.

The dispensing system of an airpot commonly employs a pump plunger that creates pressure when pressed, forcing the beverage up through a tube and out of the spout. Some models utilize a lever-action pump, while others have a push-button mechanism. This design allows for easy and controlled pouring without needing to tilt or lift the container, making it ideal for serving large quantities of drinks at events, offices, or homes.

Airpots are widely used for coffee, tea, hot water, and other beverages. Their ability to maintain temperature for several hours makes them a convenient alternative to traditional thermoses, especially when frequent access to the beverage is required. They are available in various sizes, from small personal units to large dispensers capable of holding several liters. The vacuum insulation and dispensing mechanism are the key features that differentiate airpots from other types of insulated containers.