Hario, Coffee Syphon, Technica, 600mlCoffee syphons have been used for hundreds of years. We've taken a classic device and elevated it with a modern design and quality materials. The Technica Syphon is widely recognized for its signature heatproof glass, clean lines and iconic look. This syphon is supported by a metal stand that holds the brewer over an open flame or alcohol lamp. The water in the lower bowl heats up, and pressure builds, causing the water to rise up to the top chamber.