What is coffee extraction? What on earth is a cup of coffee?
When thinking about it, I find that I still want to explain a concept first, which is very important and has a vital impact on a cup of coffee.
Let's start with a question: what on earth is a cup of coffee? To put it simply, when the water passes through the coffee powder, it dissolves and brings out some of the soluble matter in the coffee powder, and then we get a cup of coffee. In other words, in this cup of coffee, in addition to water, it is taken out of the coffee powder by water.
The other question is, what affects the taste of coffee in a cup of coffee? If you agree with me above, then the answer to this question is that the substances brought out of the coffee powder by water determine the taste of a cup of coffee.
From this, we can also explain the concept that water releases the soluble substances from coffee powder called coffee extraction.
About 30% of the substance in coffee powder can be extracted, which intuitively means that in 100g coffee powder, we can extract about 30g. However, not all 30% of coffee is what we need. Suppose that the substances we extract do not meet a standard, and we cannot fully release the taste of coffee. If we extract more substances than that standard, we will release too many substances. The consequences of these over-extracted substances on the taste of coffee will be disastrous, such as: the taste of coffee will become messy and bitter.
Therefore, a good cup of coffee is to grasp an appropriate amount of extraction, extract that part of the substance we need and not too much or too little extract some substances we do not want, so as to ensure a balanced and delicious taste of the coffee.
Coffee extraction is very important, it is the soul thought of coffee making!
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Introduction to Coffee knowledge single Coffee extraction equipment
Generally, you can drink coffee to a single product without sugar and milk, which is a high-level veteran. Individual coffee is also known as vegetarian coffee, or Zhai coffee, which shows that ordinary Chinese still have a great misunderstanding about this kind of coffee! After all, in the eyes of most ordinary people, coffee is synonymous with bitterness! No bitter, no coffee! Most of the people who really like individual coffee have drunk the really good ones.
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Matters needing attention in the extraction of espresso? Coffee extraction
1. Precautions for the use of the spherical liquid separation funnel: 1) before use, the glass piston should be coated with a thin layer of Vaseline, but not most of it, so as not to block the flow hole. When in use, the left hand tiger mouth resists the funnel ball and rotates the piston with the thumb and index finger to control the filling of liquid. At this time, the small groove of the glass piston should be aligned with the small hole on the side of the funnel mouth before the liquid filling can be carried out smoothly. 2) when acting as a liquid dispenser, the lower end of the funnel cannot
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