Basic knowledge of espresso espresso
The golden rule of an ideal espresso indicates the extraction time and the amount of extraction. The golden rule is a good guideline, but in many cases, color is a better indicator of grinding thickness and whether the packing is correct or not.
Although it is not absolutely necessary, the extraction process can be clearly shown by observing the extraction with a bottomless cooking handle. When using a "normal" cooking handle, you can also get a lot of symptoms by carefully observing the flow from the diversion head. Color can give you a clear signal of when to stop the extraction, and remember that the tiger grain will fade with the time the beans are placed. Also remember that decaffeinated coffee has very small stripes; decaf beans tend to be darker and more uniform at first and turn golden earlier than caffeinated beans. Of course, the stripes of freshly baked beans are darker when they are cooked. Depending on the formula of the mixed beans, you will get the best results four to ten days after baking.
Although stopping extraction when golden yellow appears will get you a cup of the best espresso, correcting inappropriate extraction itself can lead you to a better espresso. If the extraction is too slow, the espresso will be more bitter and the dark brown crema;. If the extraction is too fast, the espresso tends to turn sour and the crema will all turn cinnamon. Tasting is the ultimate guide to correct all kinds of mistakes (grinding, packing, and temperature). Keep practicing and get good cooking is basically a skill. Divide the material, powder, fill and press. Repeat, let's assume that the cooking pressure of your espresso machine has been adjusted correctly and that the cooking temperature is correct. I suggest setting the cooking pressure to 82. When you get to 9.5bar, set the cooking temperature to 202 degrees Fahrenheit as a good starting point. Suppose you have chosen a good coffee mill and fresh espresso mixed beans, and now the final result depends on the extraction. Within 25 seconds of boiling a cup of espresso, a lot can happen. If you have a standard cooking handle, your observation is limited to the flow of water in the water divider. The bottomless cooking handle provides a new and favorable perspective for this process.
Before entering into the common extraction defects, I will briefly talk about how to correctly prepare the coffee to be extracted. Basically based on the skills mentioned in his article Espresso Packing Techniques: Update 2004 by the owner of David Schomer,Vivance, an influential barista trainer. The first page of the online article is a step-by-step reference card, and the scanned text is more difficult to read, so I excerpt part of it below, starting with the third picture:
1. There is a small pile of freshly ground coffee in the powder bowl
two。 After filling up all the lows, push the coffee towards 12:00
3. Now, at the top, push the coffee with your fingers toward six o'clock.
4. Push the extra coffee to the middle of the powder bowl and repeat the above steps
5. Under a pressure of 40 pounds. Turn and flatten when lifting the powder press
6. Gently side-tap; notice that the cooking head is lifted from the table.
7. Using bathroom scales to train operators can use 40 pounds of pressure powder.
8. When finished, press down with 20 pounds of pressure and turn the powder press clockwise to smooth the coffee powder.
Using the above steps as guidelines, let's review the distribution, distribution, and packing in a little more detail.
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How to make a good cup of coffee extraction law
In view of the past brewing coffee, in order to get the best coffee flavor, it is necessary to control the two variables of coffee powder and water. In the definition of golden cup coffee, it is stipulated as: 1000 milliliters of hot water at 92 degrees Celsius and 60 grams of coffee powder. This powder-water ratio falls at the center of the best extraction rate and concentration. The following is a detailed explanation of the extraction degree of coffee beans. Each coffee bean can be extracted and soluble in water.
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COSTA's "Golden Rule of Coffee" teaches you to distinguish between quality coffee.
The world consumes more than 4000 billion cups of coffee every year. There is no doubt that coffee has become one of the most popular drinks in the world. There are many types of coffee with different styles and methods, but the same thing is that every good cup of coffee can be a pleasant experience, while bad coffee can only spoil the mood. There is only a small difference in quality.
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