A detailed illustration of the principle of Philharmonic pressure extraction Coffee

The Philharmonic pressure looks like a syringe. If you don't understand it carefully, you really don't think it's a coffee brewing device. If you look at it carefully, you will find that there is a special competition that uses Philharmonic pressure to brew. What kind of magical instrument is this?

Dissecting Ailo pressure

The structure of the Philharmonic pressure can be simply divided into three parts: the kettle body, the filter cover, the piston pressure cylinder, and of course, there are special circular filter paper and Philharmonic pressure mixing rod and funnel. It combines the soaking extraction method of the French filter pressure pot, the filter paper filtration of the hand coffee and the pressure extraction of the Italian coffee machine. Its working principle is to mix the coffee powder with hot water, squeeze the air with a pressure cylinder, and penetrate the filter cover to extract the coffee with clean flavor.

A tutorial on the use of Love pressure

The way of making coffee is divided into positive pressure and reverse pressure. Positive pressure is to put the body of the Philharmonic pressure on the cup, add the ground coffee powder and a certain proportion of hot water to stir, insert the piston cylinder and press down for extraction.

Reverse pressure is to install the piston cylinder on the pot, invert it upside down, stir the coffee powder with hot water, press the filter cover, and then pour it back for extrusion extraction.

The demonstration coffee beans are roasted in front street coffee at the Brazilian Queen's Manor Yellow bourbon, which is moderately roasted. The degree of grinding is finer than that of hand-brewed coffee, and the pass rate of No. 20 standard sieve is 90%. The water temperature is 90 ℃.

Positive pressure mode

① first, press the round filter paper on the filter cover and wet it with water.

② press the filter cover on the pot and place it on the front and on the filter cup.

③ put in the funnel and pour in 15 grams of ground coffee powder

④ starts the clock, pours in hot water and reaches the "④" scale of the kettle.

⑤ uses a stirring stick to slightly stir the coffee powder in the pot to make all the coffee wet.

⑥ press on the piston cylinder, because coffee will drip into the lower pot under positive pressure, so stir and press the cylinder quickly after water injection. After pressing the cylinder, the dripping will stop because it is sealed inside.

⑦ 1 minute later, began to squeeze the piston cylinder, coffee liquid squeezed effect is pressed to the next pot, after extrusion time is 1 minute 20 seconds.

Reverse pressure mode

① assembles the kettle body and the piston, presses the piston cylinder to the scale "④" and places it upside down on the table.

② put in the funnel and pour in 15 grams of coffee powder.

③ starts the clock, then injects hot water to full.

④ uses a stirring stick to stir the coffee powder evenly, resulting in a golden liquid surface.

⑤ press the filter cover and flip the kettle over the filter cup. This action should be quick to prevent the coffee liquid from spilling.

⑥ until 1 minute later, begin to squeeze the piston cylinder, the coffee liquid is squeezed into the filter cup, the squeezing time is 1 minute 20 seconds.

The front street of these two methods are more inclined to reverse pressure, because the reverse pressure is easier to use and has high stability. When the positive pressure is injected, the water will also drip into the lower pot, so it is more difficult to master.