This is the biggest variable point, because our body is not an instrument, the strength of the powder is based on the feel, for the novice is not there to feel, only the strength is small, even if it is the veteran on the bar, the first two cups every day is also to find the feeling of strength, because we may because of the physical state of the day or even the mood directly affects the exertion of strength.
The reason why the powder pressure can be adjusted to increase stability is that the scale and powder loading amount, as well as the beans themselves, will produce certain small errors due to the environment. And this error, in most cases can rely on the weight of the powder to improve the stability of the extraction effect.
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