What's the difference between hand-brewed coffee and siphon-pot coffee? And the extraction of siphon pots.

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The prototype of hand-brewed coffee was invented by an Englishman named BIGGIN, because when coffee was introduced to Britain, the Turkish soaking method was introduced to make coffee, and the British liked coffee but did not like the taste of coffee grounds, so this Mr. BIGGIN invented the prototype of velvet filtered coffee at the end of the 17th century, called BIGGIN, and then in the early 18th century. The French also invented a metal filter, but most people still like to use BIGGIN, so it was not until Europe used industrial methods to brew coffee by machine, this hand-brewed coffee utensils were used and carried forward by the Japanese.

Siphon pot, also known as plug-wind pot, is a common tool for individuals and characteristic cafes to make coffee. It has a history of more than 200 years. It needs to master the thickness of coffee powder, heat and the time of coffee extraction, so it belongs to a professional coffee vessel. Because of its special shape and working principle, this device is jokingly called a chemical instrument by many people, and the process of making coffee is regarded as a chemical experiment. Let's take a look at the working principle, structure and usage of this coffee vessel.

I. the main city components of the siphon pot

1. Upper cup (for coffee powder and coffee mixing and extraction)

2. Lower cup (for filling water and coffee extract)

3. Lower cup bracket

4. Upper cup lid

5. Filter cloth (filter)

The structure and extraction principle of the siphon pot: it is composed of two glass balls, and there is a filter in the middle. When the ball begins to heat, the hot water will expand and flow from the upper seat tube through the filter to the upper pot. Combined with the coffee powder placed in the upper pot, the coffee powder can fully dissolve the water-soluble substance in the water for about one minute. During this period, the ball continues to heat to maintain pressure, so the water will not come down. After it is cooked, the heating source is turned off. At this time, the air contraction pressure in the lower seat disappears, and the brewed coffee flows to the lower ball through the filter. The coffee grounds are filtered and left in the upper seat.

The construction principle of the hand coffee pot: most of the construction of the filter paper hand coffee pot is made of a V-shaped filter cup with filter paper for filtering coffee and a graduated coffee pot under it, which is matched with a stainless steel hand pot to make coffee. The principle is that the coffee powder is used as a filter layer and the soluble ingredients of the coffee are brewed out of the coffee by manually controlling the flow rate of hot water in the stainless steel hand pot and flowing into the coffee pot. For coffee powder washed by water, the soluble components move on the surface, and the movement of ingredients takes a certain amount of time, so it generally needs to be brewed by injecting 3-5 hot water; the total brewing time is about 2-3 minutes.

Coffee taste: the siphon pot can better show the original taste of coffee, highlighting the taste differences between different individual coffee, the taste is more full-bodied, mellow, mellow.