What kind of coffee beans are used in Italian concentrate? What is the extraction characteristic of Yunnan blended beans: powder-water ratio? How do you make a latte?

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Although more and more people pay attention to individual coffee, espresso accounts for a large proportion in terms of ordering in Qianjie coffee shops. This is just a matter of preference, which does not mean that espresso is better than individual coffee, or that people who drink espresso do not understand single coffee, and so on. Qianjie Coffee has always believed that coffee is a very inclusive food culture. it can simply show the flavor of a single producing area, or it can be mixed with multiple producing areas to present a comprehensive flavor. When it comes to mixed producing areas, we have to mention the most common coffee beans in espresso. Today, Qianjie Coffee will talk about a combination of Italian coffee beans from the aspects of selection of producing areas, baking and blending proportion.

What are Italian coffee beans? What kind of coffee beans are suitable for Italian style?

Italian coffee beans more refers to the blending of coffee beans, what is blending, is a variety of individual coffee beans mixed together, generally two or three kinds of coffee beans will be more common. Qianjie Coffee currently produces several Italian coffee beans using two and three blending methods.

The purpose of blending is very obvious, is to gather the flavor of different coffee beans together, showing a new flavor, in order to achieve a more balanced effect. For example, if a kind of coffee bean is slippery but lacks aroma, another kind of beans with rich aroma can be added to enhance each other's strengths and avoid weaknesses. Qianjie Coffee believes that it is the complementary nature of Italian coffee beans that makes it more acceptable to the public.

Italian coffee mix

The roasting part of espresso coffee is roughly divided into two groups, one likes to mix first and then bake, and the other is baked separately according to various producing areas and then mixed with beans, the two different ways will of course create different flavors.

Qianjie coffee uses the way of mixing raw beans and then baking to find that the color and luster of the roasted coffee is more uniform, and the flavor is more consistent, which is more convenient. When using the method of baking and then mixing, you need to know in advance the different soybeans in different producing areas, including their hardness and water content, and the baking process will be adjusted according to these conditions. Baking and mixing is equivalent to an one-to-one model, showing the flavor of each coffee bean one by one, with a richer sense of hierarchy than the former, but it also challenges the baker's understanding of the beans.

Italian coffee bean recipe? What kind of coffee beans are suitable for Italian style?

What kind of coffee is suitable for Italian style? Qianjie Coffee now has four kinds of Italian coffee beans with different flavors.

1. [Qianjie Coffee mix] choose the ratio of Goran to Brazil at 3:7.

Flavor features: comfortable sweet and bitter taste, the entrance is very smooth, with a hint of grass, the fragrance is slightly bitter, smooth and smooth, the aftertaste can be pleasant.

2. [Qianjie Coffee Sunflower] choose the ratio of Honduras Shirley to Yejia Red Cherry at 6:4.

Flavor characteristics: it has obvious acidity, a hint of berry aromas, rich aromas of wine and chocolate, and a comfortable finish.

3. [Qianjie Coffee Commercial mix] choose Colombia, Brazil and Robsta, with a proportion of 3:6:1.

Flavor characteristics: oil will be richer, taste classic, caramel sweet, nut and cocoa, dark chocolate flavor, sweet and sour balance, a little bittersweet, lingering finish.

4. [Qianjie Coffee basic blending] choose the ratio of Yunnan coffee beans to Brazilian coffee beans at 3:7.

Flavor characteristics: the flavor is characterized by soft fruit acid, sweet caramel, nutty, dark chocolate flavor, smooth and sticky, but light taste.

What is a latte?

The "latte" in latte is transliterated from Italian "latte", which means "milk". Latte can be interpreted as "milk coffee" in literal translation.

Lattes vary slightly in the ratio of milk to coffee, beans and extraction parameters in each store. But in general, a latte is a coffee drink with a large amount of milk mixed with espresso.

There are a lot of friends asking what Qianjie coffee baristas want to learn and whether they can become baristas if they can pull flowers. In fact, if you want to be a barista, you should not only know how to make coffee, but also learn a lot about coffee. Of course, the most basic skills are extracting espresso and steaming milk. Many caf é interviewers will choose latte as the test question to test whether the interviewer has the basic skills of barista.

How do you make the latte at the front street cafe?

Choose the sunflower mix of Qianjie Coffee for self-use for display. The coffee bean information is as follows:

Coffee name: sunflower warm sun mix

Source of matching beans: Honduras Shirley barrel & Solar Yega Shirley Red Cherry

Composition: 6:4

Flavor description: vanilla, cream, fermented flavor, wine rhyme, chocolate

Espresso extraction parameters:

Coffee powder: 18g

Coffee liquid: 36g

Extraction time: 28 seconds

Milk parameters:

Milk type: whole milk

Kill temperature: 50 degrees Celsius

Thickness of milk foam: 1cm

Proportion of milk coffee: 1:9

Cup details:

Cup capacity: 200ml

Material: ceramic

How to make a good cup of concentrated extraction?

1. Choose beans

Qianjie coffee is generally recommended to keep Italian beans for about ten days, but as we all know, deep-baked beans will exhaust faster than shallow roasted beans, but why does our proposal take so long? This is because there is not enough room for coffee exhaust when it is concentrated, like hand flushing. If the coffee beans are too fresh and the exhaust is exuberant, it is easy to produce a channel effect, resulting in unstable concentration.

2. Adjust the degree of grinding

Now that we have the right coffee beans, we need to look at the concentrated grindness! This is basically done every day-- grinding. The degree of grinding of espresso is not set on a certain scale alone. when should the degree of grinding be adjusted?

May need to adjust the condition of the bean grinder.

1. When the temperature, pressure and humidity change suddenly, especially in the open space, it is most obvious.

two。 When the old and new coffee beans are replaced: when a bag of coffee beans is used up and the beans are poured into the newly opened beans alternately. Because the roasting date, batch and cultivation period of newly opened coffee beans may be different, the extraction situation is very different.

3. Continuous brewing: the grinding degree will suddenly become very fine after 6 cups of continuous 5 murmur. this is because after the continuous use of the bean grinder, the heat energy of the motor conducts heat to the cutter head, plus the heat energy produced by the friction between the cutter head itself and the coffee beans. as a result, the gap between the upper and lower cutters becomes very fine due to thermal expansion and cold shrinkage.

The humidity and storage time of coffee beans are constantly changing, and the wear degree of bean grinder blades has also changed over time, so baristas should adjust the bean grinder regularly to ensure that the ground coffee powder remains perfect.

When the coffee bean enters the grinder, the blade in the grinder will crush the coffee bean into powder. The smaller the distance between the blade and the blade, the smaller the coffee beans will be ground into smaller particles. The finer the grinding particles are, the tighter they are, and the more difficult it is for the water to pass through, thus greatly prolonging the extraction time. On the contrary, if the distance between the blades increases, the ground particles will become rougher, the flow of water will be easier to pass through, and the extraction time will be faster.

Generally, we will use the last extraction parameters to do a cup concentration, the time is controlled within 25-30 seconds, the amount of single powder is 13-14 grams, and the amount of double-end powder is about 20 grams.

After excluding pressed powder perforation and other factors, if the extraction time becomes longer, it may be over-extraction on the surface, but there is not enough extraction inside, showing acidity, bitterness, and astringency, then it may be that the powder is too fine, and then you can adjust it slightly; but if the flow rate of coffee becomes faster, the flow of water is thicker, the extraction is shallow, and the color is white, it may be that the powder is thicker, and at this time you can adjust it slightly fine.

3. Powder

Powder is the first step of powder distribution, which is uneven, which misleads and affects the next step of powder distribution to a great extent. even if you use a very advanced auxiliary artifact of powder distribution, you can't completely ignore the effect of powder on espresso extraction.

What is the effect of uneven powder?

1, the difference in taste: if the powder is not uniform, the distribution of the lower part of the powder layer can not be remedied when the powder is distributed. The uneven density distribution of the powder layer will lead to uneven thickness of pressed powder, different speeds of hot water passing through different positions during extraction, and a little carelessness can easily lead to perforation and channel effect (the inertia of water will make water choose a place where it is easy to pass through, while ignoring other ways), resulting in insufficient and over-extraction of part of pressed powder, and the taste of coffee is unstable each time.

2. the gap of extraction parameters is too large, which leads to the bean grinder which has been adjusted for a long time, the flow rate is not right, the time is not right, the grinding degree is still wrong, a pile of coffee beans have been worn away, but the product is still not stable.

So how to practice powdering?

1. Prepare the electronic scale

Weighing the powder before each extraction is a necessary operation for making perfect Italian concentration. Even if it is a quantitative bean grinder, I suggest you regularly check the weighing accuracy of the bean grinder. After all, no matter how advanced the machine is, there will inevitably be errors and failures.

2. Rotary powder bonding

Whether the hand is dialed or straight out, as long as the coffee powder does not fall completely vertically, the powder layer will still show a certain degree of deviation under the influence of lateral acceleration, for example, when pulling the powder by hand, the effect of hard pulling is different from that of gently pulling-the harder the more to the left.

At this point, it is necessary to keep the powder at a uniform speed and rotate the handle at a uniform speed to keep the powder evenly distributed to different positions of the powder bowl-of course, it is impossible to be absolutely uniform, but at least it is much better than fixed powder.

4. Cloth powder

Our common ways of distributing powder are as follows:

I. the method of scraping flat cloth powder

The method of scraping flat cloth powder has three sharp tools: powder bin cover, bamboo and fingers. The method of scraping flat cloth powder is one of the most common and earliest contact methods for beginners. It usually cooperates with the movements such as pushing back and forth, and is divided into "square cloth powder" scraped around and left and right, "rotary cloth powder" scraped flat by 360 degrees, and so on.

Second, the method of tapping and knocking cloth powder lightly

Tapping and tapping are two movements, but they are usually used continuously. The palm quickly taps the bottom of the handle and shakes the powder pile evenly, supplemented by a straight up and down tap, which can effectively eliminate the large gap in the powder layer, make the coffee powder pile denser, and increase the amount of powder that can be contained in the powder bowl.

Third, the method of appliance-assisted cloth powder

When it comes to auxiliary cloth powder, of course, each shows his or her magical powers. According to all kinds of artifacts on the market, there are mainly several kinds: ① stirring or shaking well; ② smoothing the surface; ③ sieve dispersion; ④ rotating distribution.

Inspection of the effect of powder distribution

In the process of extraction, if it is found that the state of the coffee liquid will soon become unstable, a large jump, and the color will soon become very light, at this time, we can judge: there is a problem inside the pressed powder (cracks appear) or the uneven pressing of the coffee powder makes the less part of the coffee powder overextracted (and this is probably due to the uneven distribution of the powder) or the uneven distribution of the powder. So that the edge is not covered with coffee powder, causing the water to flow directly through there.

After the extraction is completed, take off the handle and observe the shape of the pressed powder. If there is no coffee powder on the edge, or the coffee powder is soaked or there is an obvious gap in the pressed powder, it is the extraction failure caused by uneven cloth powder.

Fourth, pressing powder

The pressing powder is to tighten the loose coffee powder through a certain amount of pressure so that the pressurized hot water can penetrate evenly.

The direction is straight down. If the pressure is inclined, the high-temperature and high-pressure hot water coming out of the boiling head will seek the infiltration of the layer with the least resistance, resulting in uneven extraction. At the same time, it is easy to have the channel effect that we often talk about.

The power of pressing powder and what kind of powder hammer you use does not matter much, as long as you press the powder tightly. Therefore, it is all the more important to keep the powder pressing force consistent every time.

How to make milk foam?

How to beat the essential milk foam in the latte in order to make silk? Qianjie coffee is recommended to use whole milk with a fat content of 3.2-3.8%.

Weiji fresh milk was used in the front street coffee in this experiment.

The process of passing away the milk

1. Place the steam stick in the center of the milk tank and tilt 45 degrees to the upper right near the edge of the milk tank, with a depth of about 1 cm. This depth will be more common, but when it comes to coffee machines with different steam intensities, this is just a suggestion. )

2, open the steam pipe steam, the milk tank slowly move down, and make the steam rod air hole contact with the milk liquid surface to produce inflatable effect, showing the way of turning up and down slowly to make the volume bubble.

3. When the inflatable foam expands to the thickness you need, move the steam stick obliquely to the center point of the milk tank near the edge of the steel cup, so that the milk bubble rolls in a vortex way.

4. Control the angle and depth of the steel cup to involve the thicker milk foam and stop beating to the desired temperature.

The principle of dispelling milk

The first stage is to get rid of the air intake, that is, when the outlet hole of the steam rod comes into contact with the milk surface, the steam enters the milk and turns into milk foam.

The second stage is to soak the foamed milk, which is to draw the foamed milk into the air in a swirling way, break the larger foam, decompose it into fine foam, and let the milk molecules bond with each other, making the foam tissue more compact.

What you need to pay attention to.

Get rid of, inhale

Turn on the steam and start to breathe in and observe the surface of the milk. if the milk rotates and does not hear the sound of nourishment, it means that the air has not been breathed. at this time, you need to lower the milk jar a little bit and expose the nozzle a little so that you can breathe in. when you hear the nourishing sound, stop lowering the milk tank and keep it in place.

At this time to observe the state of milk movement, the normal situation should be to enter the air while the liquid rotates, forming a whirlpool.

The air intake action of moving down the milk tank must be subtle and gradual, not too violently, and the sound should be stabilized and stopped when it is almost in the air intake state.

The angle of the steam stick when making milk foam

Many people are used to placing the steam stick in the 2-3 o'clock or 9-10:00 direction of the milk tank (with the nozzle as the 12:00 direction).

Find the angle of the steam rod in addition to placing the correct position of the steam rod, the angle between the steam rod and the liquid level is also very important.

The steam stick is so vertical that most of the steam is ejected downward, making it difficult for the milk to form a small whirlpool: if the steam rod is too flat, most of the steam will be ejected in a parallel direction, making the small whirlpool too large to form turbulence that is difficult to control or milk spill.

Beginner to learn the practice method of flower drawing

When we extract a cup of espresso and foam, first shake the espresso in a circle to attach the oil to the wall of the cup, and then the cup is tilted at an angle of about 40 degrees.

When injecting milk, the water column should not be too large, so that the milk directly pierced the coffee liquid to the bottom, and then began to circle to make the milk and coffee liquid mix.

It should be noted here that the water column should be thin when milk is injected, and it should be located in the middle of the coffee liquid. As shown below:

Then begin to circle and mix the milk and coffee until about six minutes full and begin to draw flowers.

Push the layer and pull the flower

The push layer center injects milk at the 1 stroke 3 of the cup, pushes out a semicircular arc, and then pushes another one forward. when forming a heart shape, increase the height of the milk tank and inject milk for a while, so that the initial semicircular arc surrounds the whole heart. finally, it ends with a thin line.

Description of the flavor of Qianjie latte coffee

The espresso bean currently used in Qianjie Cafe is a blend of coffee beans, Honduras Shirley barrel fermented beans and Ethiopian Yega Shirley red cherry plan sun-treated coffee beans. this espresso made of mixed beans with milk will be obvious wine chocolate, obvious sweetness, long finish, clean, very suitable for friends who like wine flavor.

For more boutique coffee beans, please add private Qianjie coffee on Wechat. WeChat account: kaixinguoguo0925