Invented by Loeff of Berlin, in 1830 the vacuum method of coffee preparation was disgraced by 1960, but began to recover in the decade 1990 and is increasingly popular in the 21th Century. There are many different names for these "machines" - pots VAC, vacuum brewed coffee, the siphon beer, empty coffee siphon, siphon coffee maker, etc.
If you ever seen any of these coffee makers, his first question was probably - How the hell does this thing?
A beer trap basically consists of 4 parts - a bottom container where you pour water, container top, where you put coffee grounds, a siphon tube that connects the containers and a filter, where liquids and gases pass through. The device is working principle is based on the expansion and contraction of a gas (water vapor). The bottom container is heated, creating steam that pushes water up the tube and the filter of the roof of a container. Once most of the water has moved into the upper chamber the gas can escape through the siphon tube (the tube that does not touch the bottom of the House, there is little difference between them). Escaping keeps water vapor in the upper container to the required temperature (may appear to be boiling but not really). The process is still 1 to 3 minutes, then remove the heat source. That basically creates the reverse reaction when the steam in the House cools and contracts (some of which are converted back to water), creating vacuum and therefore the liquid suction that pulls the upper house to the container bottom. The effect is so strong that the beans are almost depleted in the process.
Originally vac pots used simple wick burner to heat water and some still do. Today there are just over a variety of heating sources. In principle, almost falling into two categories -- the stove (gas or electric) and the autonomous use of heaters and wick burners alcohol and butun. From all these sources of cord are the slowest butun burners and the fastest. If you want to go for the latter option, look for burners that are easily controllable flame - is essential for the large siphon coffee.
Siphon coffee makers come in many different sizes, the most common are 12 ounces (3 cups), 20 oz (5 cups) and 32 ounces (8 cups), but also There are breweries by only 4 oz and up to 48 ounces.
There are different types of siphon beer available, most common are two types world (photo). Here a ship is sitting on top of another and siphon tube is among them. Another more common type is a balance brewery, which works on the same principle, however, the fluid moves side to side instead of up and down.
When vac pots fell for the few, only manufacturers keep their production. With the growing popularity of the last of these coffee makers and more companies are considering bringing back into production. In the Japan empty coffee is even more popular than drip coffee, which is probably the reason why many siphon coffee are produced by companies Asian and Tayli, Hari and Yama. VAC A well known manufacturing company in Europe is Bodum pot with coffee called Santos.
Coffee Siphon could take some trial and error to get used to it, but they are interesting and fun to make coffee (and make a good coffee, actually). Realistically, not many that coffee makers that look as if it were drawn from a science lab.
About the Author:
Albert T. Wolf has found his fascination in coffee and all that's related to it. Go to his blog at http://blog.wakeupvibes.com and find out more about interesting world of coffee.
Article Source: ArticlesBase.com - Vacuum Coffee - Say What?
Making Coffee with a Vacuum Brewpot
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