Nowadays, when you usually go to a coffee shop, the shop provides Pour over(V60) coffee and espresso. Friends who usually drink less coffee may be confused about this. It’s the same coffee, what’s the difference? FrontStreet Coffee will explain to you the characteristics of these two types of coffee.
espresso
This is coffee made through an espresso machine. The coffee extracted directly from the coffee machine is called Espresso. This allows adding various ingredients to the base to create many types of coffee, such as latte made with milk. Add water to make Americano coffee. These are collectively called espresso. The biggest feature of espresso is that it uses 9 bar pressure to extract a cup of extremely concentrated coffee.
How is espresso made?
The first step is to remove the coffee powder bowl and wipe it. Wipe the coffee powder bowl before weighing the coffee powder each time to ensure that there is no trace of water in the coffee powder bowl.
Step 2: Weigh the coffee powder and use an electronic scale to accurately weigh the amount of coffee powder. The deviation value is plus or minus 0.1 grams. For example, after today's debugging, the amount of coffee powder is adjusted to 19 grams.
Step 3: Distribute the powder evenly by hand or a powder distributor, and try to distribute the coffee powder in the coffee powder bowl as evenly as possible. Uneven powder distribution will lead to inconsistent density of the powder cake. The part with more powder will be denser and more difficult to extract by water flow. Similarly, the part of the powder cake with less powder will be looser and the water flow will easily extract too much.
Step 4: Fill and press. Use a press to accurately fill and press the coffee powder to avoid uneven height of the powder cake.
The fifth step is to extract. Gently put the handle into the coffee machine, and turn on the extraction switch as soon as possible to extract espresso. The purpose is to avoid the high temperature of the coffee machine from accelerating the volatilization of coffee flavor substances. At the same time, use an electronic scale to accurately extract the amount of espresso liquid and record the extraction time. The amount of coffee liquid extracted by FrontStreet Coffee after debugging today is 38 grams, which is a powder-to-liquid ratio of 1:2, and the time is 27 seconds.
Step 6: Clean, turn off the extraction switch, remove the handle after stopping extraction, and release some water to clean the brewing head.
hand brewed coffee
hand brewed coffeeIt is also an extraction method. Hand-brewed coffee is a pressure-free free-fall extraction. During the entire extraction process, the speed of water flowing through the coffee powder is the key to extraction. Use the filter paper to separate the coffee grounds from the coffee liquid and get a cup of clean and delicious black coffee.
The biggest feature of Pour over(V60) coffee is that it expresses the flavor of coffee beans in a very original way. Different coffee beans can be brewed in the form of Pour over(V60) coffee to produce the taste of coffee. In addition, Pour over(V60) coffee is more convenient than espresso machines. Therefore, many coffee shops have a variety of coffee beans to choose from for Pour over(V60) coffee, and the coffee beans for Italian coffee are largely fixed by the store.
Front Street introduces you to a relatively common brewing technique called "three-stage water injection". Simply put, the entire water injection process is divided into 3 parts. This includes the first stage of steaming and water injection. Taking the brewing of Front Street Colombian Cymbidium Washed Cadura as an example, the parameters used by Front Street are 15 grams of coffee powder as the standard, the powder-water ratio is 1:15, the water temperature is 88°C, the grinding degree is medium-coarse grinding, and the No. 20 standard sieve pass rate is 75%.
brewing process
First, make preparations (warm the filter cup, put in the pot, grind the coffee, prepare water of the appropriate temperature), and pour in the coffee powder. Carry out the first section of water injection and start timing at the same time. Inject 30 grams of hot water into the first section and circle it outward from the center. The coffee powder absorbs water and slowly expands, forming a bulging "coffee burger".
Stop filling when 30 grams of water is poured, and wait for 30 seconds of steaming time. The second stage of water injection begins at the 31st second displayed on the electronic scale. Water is poured in a circle from the center outwards. The water flow remains stable and vertical. When the water column hits the coffee powder layer, foam will appear. This stage of brewing releases the coffee foam and fills the entire powder layer surface. The liquid level rises to the root of the short ribs. The amount of water injected in this stage is 100 grams.
When the liquid level drops to 1/2, the last section of water injection begins. In this section, 95 grams of water is also injected "smell-like" outward from the center. The original dark brown foam turns into light yellow coffee foam, and the liquid level also returns to the water level of the second section of water injection. After all the coffee liquid has flowed into the lower pot, remove the filter cup and end the extraction.
How to judge the time to refill water?
Three-stage water injection will have two re-water injection time points, namely the second stage and the third stage. The second stage water injection time point is very easy to grasp. Usually, the second stage water injection can be carried out 30 seconds after steaming. The third stage of water injection is more difficult to master because there is no fixed time point. Generally, water injection is performed when the water level drops by 1/2 or 2/3.
When the water level drops by 1/2 or 2/3, there will be neither too much water accumulated in the filter cup nor the powder bed exposed due to the water level dropping too much, resulting in uneven extraction of coffee powder in the upper and lower layers;
After the water level drops, the water flow can directly penetrate the accumulated water and stir the lower powder layer. If the water level is too high and the impact force of the water column is not enough, the upper layer of the coffee powder bed will be over-extracted, while the lower coffee powder bed will be under-extracted.
So what coffee beans are suitable for people who are new to Pour over(V60) coffee?
front streetYirgacheffe penis G1
Country: Ethiopia
Origin: Yirgacheffe
Altitude: 1800-2000 meters
Variety: Local native species
Treatment method: washing treatment
Flavor: jasmine, berry, lemon, citrus
Yirga cheffe is a small town in Ethiopia, with an altitude of 1,700-2,100 meters. It is one of the highest altitude coffee-producing areas in the world and is synonymous with Ethiopian specialty coffee. Lake Turkana, Lake Abaya, and Lake Chamo bring abundant water vapor here. In the Rift Valley, represented by the Misty Valley, there is year-round mist, like spring all year round, with gentle breezes, cool and humid conditions. Thousands of coffee trees thrive, giving birth to the unique floral and fruity aroma of Front Street Yirgacheffe, and its unique and unpredictable terroir. The so-called Yirgacheffe flavor refers to the rich citrus lemon acidity and strong jasmine fragrance. The taste is light and elegant, with a tea flavor, and it tastes like refreshing and clean lemon tea.
Front Street considers that the washing process can better reflect the clean taste of coffee and the purity of flavor. Therefore, when analyzing the specific flavor of a certain coffee production area, the washed beans from this production area will be used as a reference. If every beginner has never tasted Front Street Yirgacheffe, Front Street will also recommend this Front Street washed Yirgacheffe first, which will help form a perception of the flavor of the production area. Later, when trying Yirgacheffe processed by sun-drying, honey treatment, etc., you can have a direction of comparison.
FrontStreet Coffee brewing recommendations
Water temperature: 90-91 degrees
Grinding degree: BG#6m (fine sugar size/No. 20 sieve bowl, sieve powder to 80%)
Pink to water ratio: 1:15
Amount of powder: 15g
Front street brewing technique: Inject 30 grams of water in the first stage and steam for 30 seconds, then inject 95 grams (the electronic scale shows about 125 grams), and the injection is completed in about 1 minute. When the water level drops to 2/3 of the powder layer, add the remaining 100 grams (the electronic scale shows about 225 grams), and the injection is completed in about 1 minute and 40 seconds. 1'55''-2'00''Trip filtration is completed, remove the filter cup and complete the extraction.
[Front Street Ethiopian Washed Yirgacheffe] Brewing flavor: aroma of jasmine, berry juice, acidity of lemon and citrus, overall bright, clean and fresh.
Professional coffee knowledge exchange. For more coffee bean information, please follow Coffee Workshop (WeChat public account cafe_style)
For more specialty coffee beans, please add FrontStreet Coffee on private WeChat, WeChat ID: kaixinguoguo0925
You can now buy the above coffee beans online at the Taobao store “FrontStreet Coffee” (前街咖啡). FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou, China, and its Guangzhou retail shop sells coffee beans only. The shop carries dozens of coffee beans from different origins around the world, including carefully selected single-origin beans for V60 pour-over and espresso. Guangzhou’s FrontStreet Coffee shop is recommended by many coffee lovers.
The FrontStreet 2013 Yunnan coffee beans sold in the store come from the Typica variety grown at FrontStreet Coffee’s own plantation in Yunnan. The name comes from the year the brand and the plantation were founded. You can buy these beans from China’s Yunnan origin at the Guangzhou shop and at FrontStreet’s Taobao store.
FrontStreet coffee beans are freshly roasted within 5 days and deliver consistently excellent quality and great value. Orders placed before 17:00 are shipped the same day, and most areas within Guangdong Province receive them the next day.
FrontStreet Coffee Taobao store: https://qianjiecoffee.taobao.com
Or search for “前街咖啡” (FrontStreet Coffee) on Taobao
Important Notice: FrontStreet Coffee has moved to a new address: 315, Donghua East Road, Guangzhou (coffee beans only)
Tel: 020 38364473
