With an airpot or thermal carafe, the coffee doesn’t have to stay near the brewer. Coffee in a glass pot must sit on a heat source. Coffee is best when is it is not subjected to heat for a long time – the heat affects the flavor compounds and breaks them down. With a heat source unnecessary, the airpot can be carried anywhere and set on a table. without harming the table. They also save money because you won't have to keep the coffee on a heat source, and it saves the flavor so customers can enjoy a perfectly percolated cup of joe.