Make small notes by hand | what's the difference between coffee beans for hand-brewing coffee and coffee beans for coffee machines?

For professional baristas, please follow the coffee workshop (Wechat official account cafe_style)

Water temperature is very important, 95 degrees is the best.

There are two varieties of coffee, Arabica, the best, the earliest used by human beings, but it is not easy to take care of and is vulnerable to diseases and insect pests.

The taste is light and elegant, the smell is the most fragrant, and it is planted at high altitude.

The other is Robusta, found in West Africa, which is a good species, but it is 1.7 times more bitter than Arabica, and caffeine is also heavy. It looks round, the aroma is not good, and it smells like coal, so Jamaica is mostly used in the food processing industry (canned coffee).

The price difference between the two varieties is more than 2-3 times.

Coffee beans: the proportion of water = 1:10.

The water absorption is about 10%.

The fineness of ground coffee beans is about 80% finer than that of No. 2 sugar.

Gram degree * 10 = the proportion of individual coffee brewed

A cup of coffee is about the weight of a spoonful of coffee, that is, 20g.

Beans: if water is 1:15, it's the proportion of American coffee.

When the water temperature is high, the more bitter the coffee is. On the other hand, the lower the water temperature, the more sour the coffee will be.

Steps for making coffee:

1. Prepare equipment and materials

two。 Grind the beans with a bean grinder, one cup at a time.

3. First wet the coffee powder, this step is called steaming (pre-absorbing saturated water).

4. Then brew coffee in concentric circles or satellite spins.

Tips:

If the coffee powder does not expand at the beginning of steaming, it may be because the coffee powder is no longer fresh.

Keep pouring water with the kettle to maintain a certain liquid level. when you measure the kettle to 200c.c, remove the top filter pot, no matter how much coffee is still filtering, so as not to quench the bitter taste or excessively weak quenching.

Espresso machine is 25 seconds, steam high pressure water.

The blade-type bean grinder should be called a bean chopper, which is more uneven, but it is much more uniform than the coffee powder on the hand grinder, which is of no use except sentiment.

The fineness of American coffee powder is about 1 beat 2 of granulated sugar 2.

Water: beans = 15:1

Generally speaking, a single cup of coffee in Japan is 120c.c (so few, so small)

Taiwan and the United States are synchronized with the standard, 180c.c.

Xiaoming teacher's quotation: only the meat with bad evaluation will be used to make minced pork. (because we were discussing whether the coffee beans we bought should be ground first, but the answer we got was to grind them when we drink them.)

The coffee beans in the first demonstration are mixed with five different varieties. Does the teacher seem to call him Black King Kong? XD... It belongs to deep baking and is easier to cook.

Later demonstrated the Yega Snow Coffee series from Ethiopia. This coffee is very popular recently and is popular with female customers. It is grown in the highlands, with lemon and citrus flowers and fruits in light roasting and sweet potato in deep roasting. But this bean is not suitable for deep roasting and will feel spoiled.

The teacher said that shallow baking is not easy to cook, and even he can't cook every cup with the same taste. However, the taste is really elegant and gentle, less like coffee. : P

By the way, there are two ways to make raw coffee beans:

1. Washing: there are large channels and washing machines to soak the fruit and then clean it. (it takes several days to wash around.)

two。 Sun-drying: it's kind of like drying coffee beans in a siheyuan barnyard. The coffee beans can be removed when the sun is cracked. (but the disadvantage is that the sun can't be dried until the weather is fine. The wonderful thing is that sometimes beans are mixed with corn, nuts and so on.)

Xiaoming teacher quotation: beans are fresh food (like sashimi). So don't just put ice in the refrigerator. Just keep it at room temperature.

I asked: why do freshly baked beans have to be cooked?

Master Xiaoming answered: basically, raw beans have 80-1000 kinds of material content. Because the freshly baked beans, about 200 kinds left, contain a lot of chemicals, not very stable, but also contain a lot of CO2 ←, which will make the taste bad, but CO2 is still necessary, similar to the protection of a kind of coffee beans.

So when brewing coffee in the steaming process, the coffee powder will bubble or expand, which is releasing CO2, which is a good thing. Assuming that there is no expansion when cooking, which means there is no CO2, that is, there is no protection, but it may not be fresh enough.

American coffee notes are brief, in short, mixed bean cooking American style is good, single product cooking American style is not only a waste of cooking, but also bad taste.