Do different vac pots work differently?
In principle, all vac pots (or syphon pots) work in the same process – rapid expansion and contraction of gas causes the brew cycle. However, different types of syphon brewers work differently. The most common type of vacuum brewer is the two globe type, with one vessel sitting atop the other, and a syphon tube stretching in between. Balance brewers work on the same principal, but the liquids move side to side instead of up and down. they move over into a brew glass when heat is applied, and are suctioned back over to the kettle side when the heat is removed and a vacuum is formed. Balance brewers have the perk of being “automatic” in that the balance itself is what shuts off the flame, but it is also a potential drawback because the brewing time is short and not controlled by the user. A still less common type is the Napier vacuum brewer, which is a one way only vacuum brewing device. It looks similar to a balance brewer, except that you add most of your pre-boiled water to the brewin
