Hand-brewed Yega Chevy Coffee brewing method Teaching Yega Chefe Coffee beans extraction course

Hand extraction allows people to taste the most primitive aroma and flavor of black coffee. with the development of boutique coffee, more and more coffee people begin to join the team and begin to delve into various extraction parameters. Qianjie talks about how to make a cup of hand-made coffee for everyone.

Choose the coffee beans.

If you are a newcomer, Qianjie suggests using coffee beans with high cost. First of all, it is easier to get to know the major producing areas from the regional flavor, and avoid the waste caused by misoperation.

Qianjie bean list has launched a series of rations beans, the so-called rations beans is delicious but not expensive, Qianjie selected seven classic producing areas, covering a number of very representative producing areas, varieties, natural treatment methods These include Yega Xuefei in Ethiopia, Vivetnango in Guatemala, Whelan in Colombia, half-sun Syrador in Brazil, Tara beads in Costa Rica, wet planer forest in Indonesia and Baoshan in Yunnan, China. So that everyone can taste the flavor and tonality of the producing area at an affordable price, so as to confirm their own coffee preference, which is a very cost-effective coffee series in Qianjie.

Here, Qianjie uses the very well-known rations of Yejia and Xuefei as a display to tell you about Qianjie's extraction ideas. The coffee beans shipped in Qianjie are freshly roasted within 5 days, so that when we receive them, they are still the freshest stage, which can add more flavor levels to our cups.

Hand punching apparatus

When the ingredients are well prepared, the next step is to choose the corresponding brewing utensils, which will help to improve the positive flavor of the coffee in our cups. Hand extraction of a cup of coffee, at least need to be equipped with the following equipment: hand pot, filter cup, sharing pot, bean grinder, filter paper, electronic scale, thermometer.

Bean grinder plays a very important role in hand flushing, which is usually divided into two categories: hand grinder and electric grinder. No matter which kind of grinding equipment you choose, the purpose is to get uniform coffee powder. The thickness of coffee powder will directly affect the taste of coffee, coffee powder is too thick, easy to extract insufficient taste light, too detailed easy to over-extract, the taste will be bitter. A tool is used to adjust the grinding degree in the front street-China 20 0.85mm standard sieve. The screening rate of medium and shallow roasted coffee beans in front street is always 75%, while that of medium and deep roasted coffee beans is 70%. Here Yejia Xuefei belongs to medium-shallow roasted high-altitude coffee beans, the front street wants to extract more rich aromatic substances, so choose the 20 standard sieve pass rate of 80% of the thickness, stores use EK43s bean grinder scale of 10.

Thermometer is to measure the temperature of hot water, water temperature and grinding degree play a similar role, the higher the water temperature, the higher the extraction efficiency of coffee, the easier to release a variety of substances, the higher the concentration. If you use hot water that is close to boiling, it is easy to extract unpleasant bitter substances, so if you deep-bake coffee beans, Qianjie will use different cooking parameters from light-roasted coffee beans. There are more caramelization reactions than lightly roasted coffee beans, so it is easier to release bitter macromolecules. In order to avoid extracting too much miscellaneous flavor, Qianjie will lower the water temperature a little bit, so the front street of medium and deep roasted coffee beans is recommended to choose 87-90 ℃, while light-roasted coffee needs higher water temperature to stimulate aroma, so 91-93 ℃ is used.

The daily production of Qianjie coffee shop will choose Hario V60 and KONO filter cup, V60 filter cup is mainly responsible for the production of lightly roasted coffee beans, KONO filter cup is responsible for the production of deeply roasted coffee beans. The baristas in front street here will use resin V60 filter cups to extract Yega Chevy coffee. The body of the V60 filter cup has a large round hole connecting the diversion ribs at the top and the bottom and the center, which speeds up the flow rate of the water, while the spirally shaped exhaust trough is designed to lengthen the flow path and increase the contact time of coffee powder and hot water. each flow of water converges along the groove to the center of the filter cup, the pressure on the coffee powder is concentrated, and the coffee extracted is more layered.

Washing and cooking technique

According to previous cooking experience, Qianjie suggests beginners to use three-stage water injection. Three-stage extraction is beneficial to dissolve flavor substances more fully, increase the level of taste, and avoid excessive extraction of coffee after soaking for too long. If 15 grams of coffee powder, 1:15 powder-water ratio, 225ml total water, three stages of water is divided into: 30ml, 95ml, 100ml, the weight on the electronic scale shows: 30g, 125g, 225g.

Fold the filter paper and stick it with the filter cup, wet the filter paper with a small amount of water and make them fit better, and pour out the water from the pot. Then pour in the coffee powder and gently pat to let the powder layer distribute evenly. The first stage is gently injected with 30 grams of water for steaming for 30 seconds, and the second stage is injected with about 125 grams of water to circle evenly and smoothly outward. Then wait for the coffee liquid to drop, drop to half, inject the last section of water to 225 grams, wait for the coffee to fall behind, the general total extraction time is about 2 minutes.

The reason why people like hand-brewed coffee so much is that when we take the initiative to explore the extraction flavor of coffee, we adjust the brewing method according to the variety and roasting degree of different coffee beans, and carefully select utensils to feel the different appearance of coffee brought by different extraction methods. adjust the degree of grinding, temperature, water flow, water injection and other factors to adjust the extraction of coffee. Each step can bring a different sense of taste and smell, which is the charm of hand-brewed coffee.

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