In a siphon coffee maker, water in the lower chamber is brought to a near* boil. This creates an increase in vapor pressure, forcing the water to rise upward into the top chamber The emphasis here is on the fact that the water is brought to a near boil, as opposed to a rolling boil. … Read more
It is to be expected that a small amount of coffee will drip through the paper filter as it sits in immersion. However if your coffee is dripping though the Aeropress far too fast (ie you are losing over half of the total liquid before plunging) you should try grinding your coffee a bit coarser … Read more
The belgian balance siphon brewer invention of the mid-18th century works by placing coffee grounds in the brew flask, and water is place in the Vacuum Flask over a Spirit Burner—this Flask is affixed to a Balance Lever Making use of gravitational energy, vacuum and vapor pressure to brew you a delicious cup. Is siphon … Read more