A single double espresso differs how much coffee powder it takes to make a cup of espresso.
How much ground coffee does it take to make an espresso?
1, a single double espresso difference powder thickness
What should the grinder be set to?
Scale is only a reference, different brands of different grinding scales are not the same, the same brand of the same model of grinding machine in the same scale performance is not exactly the same, or this understanding is better: scale just tells you which direction is thick which direction is fine, when you find a suitable powder thickness, the role of the scale is only a little show. The premise is that only your bean grinder, and can not change the beans, the amount of powder unchanged, the intensity of the powder can not be changed.
Remember a tip: when you find the right powder thickness, from time to time with a hand twist, pinch a pinch, with the body to perceive the thickness and as far as possible to remember, so even if you change the bean grinder, do not only rely on the scale judgment, with a pinch obviously thick, then fine, can greatly improve efficiency.
2. Powder loading
How many grams of powder do you put in a single double?
I can tell you how many grams of flour I use, but that's for my beans, my grinder, my flour thickness, my crushing strength, and these are all closely linked and have a direct impact, and when you change one of them, you have to change the others. In principle, we are more coarse powder, less fine powder, of course, you can fix a self-considered ideal amount of powder, because the amount of powder and scale are relatively controllable (compare the numerical value, the scale is how much, the amount of powder is a few grams) For example, I used to use 7g for a single serving and 16g for a double serving.
3. Powder pressing strength
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.
But also this point, I think the most can increase stability, when you use the same kind of beans, find a good scale, determine the amount of powder, with a force that you think is more comfortable, if you can make a decent esp, then basically done. 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.
4. Effects of beans
Why does changing beans make a difference? Is the bean bad?
The overall composition and density of different varieties of beans in different producing areas are different, and different baking degrees will also cause differences in hardness, resulting in changes in the speed of grinding and the size of particles. As a result, the powder thickness scale, powder amount and powder pressing strength of beans before appear to be somewhat weak, just like you can't wear your wife's shoes hard on your feet. Therefore, many foreign restaurants will use fixed bean grinders for fixed beans, in order to ensure the stability of their grinding effect as much as possible.
Therefore, my final suggestion is that in the case of fixed beans, first set the amount of powder, then find the powder thickness, and then use a more stable strength to find the feel, the efficiency should be the highest.
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