Vacuum pot brewer was invented by a Scottish engineer, Robert Napier, in about 1840. It has two glass or metal globes that fit together to make a seal. A plug, often attached to a spring seats in the upper globe

Vacuum coffee maker is a chapter in the history of coffee, but it still amazes your crowd with every "performance"!

Vacuum coffee maker would probably be the most dramatic and interesting way of making that full flavored cup of coffee. It would not be high on coffee maker ratings (too slow) and probably does not receive much coffee maker reviews (maybe apart from its strangeness) but if you set it up during a gathering, vacuum coffee maker impresses the crowd

It is actually 2 glass globes, one set into another, with a filter (usually a cloth filter). The bottom glass globe is suspended over a heat source. This set up looks more like a high school experiment than a coffee making device, but it does makes a good cup of coffee if the rules are followed closely.

The vacuum coffee maker probably first appeared during the 1st world war and was revived during the 70's. Currently, they are not that popular due to the slowness and peculiar method, but we all know that with bunn, capresso etc coffee maker around -speed and convenience beat theatrics hands down!

1. Place the cloth filter in the upper funnel and the ground coffee in the top globe. The coffee ground sits around the filter and the top is open.

2. Set the bottom globe on its stand and fill it with boiling water. Oh, please do not wait for the tiny flame to boil the waters unless you are preparing coffee for the next meal, i.e. breakfast preparing for lunch!

3. Light the stand's flame and steam pressure would force the boiling water upward through the tube into the upper globe, where the water will infuse with the ground coffee.

4. Stir the mixture, then allow the coffee to steep for approximately 2 minutes.

5. Turn off the flame and as the lower globe cools and contracts, a vacuum will form and suck the coffee down into the lower globe.

6. When the coffee is all vacuumed into the lower globe, remove the upper globe and serve the finished brew and have people complimenting on the chemistry knowledge that you possesses...

Other than that, vacuum coffee maker is very time consuming. Waiting is definite as the steam pressure is the driving force and it takes time for that tiny flame to build up the steam.

Even throughout the brewing process, patience and timing is essential. The brewing must be complete before the top globe is removed, . If the top is removed too soon, you would have spill coffee. Other than waiting and patience, the vacuum pot is finicky and complex device to have for a cup of coffee.

And, you definitely be in need of insulated or coffee travel mugs just to keep your coffee hot as the coffee brewed gets cold in this set up pretty fast.

So, there is a reason why it is inside the history of coffee and not really the 'in' coffee makers to be having in your house.

BUT, for those folks that are curious or even impress with this method of making coffee, buy some speciality gourmet coffee,brew it in a vacuum coffee maker and see chemistry at work!

Learn more about vacuum brew with the articles below or search our site to learn more about coffee makers and coffee making.

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