The Timemore Vacuum Pot XTREMOR for three cups is made for real coffee connoisseurs. Your morning coffee routine will be transformed into a mini chemistry lab! How does it work? The bottom burner heats the water in the glass container, which rises as steam into the top glass container The coffee is extracted in the top container, and the coffee then returns back down into the lower part After a few minutes, the sediment will be the only thing remaining in the upper part Fresh and pure filtered coffee is ready for you to enjoy