I believe everyone is familiar with espresso beans. The coffee base of many milk coffee drinks is made by adding milk to the espresso extracted by the espresso machine. Many novices also asked whether the espresso from FrontStreet Coffee can be drunk directly? What should I drink from such a bitter espresso?
First, let’s understand the composition of espresso coffee
Espresso component 1: Cream
After extracting an espresso, we can first observe a brown oil layer, which is composed of the carbon dioxide produced in the coffee during roasting and the oil in the coffee. Oils are an important component of extracted espresso, adding a pleasant creamy feel and body to the coffee. The oil of coffee is mainly composed of carbon dioxide and insoluble oil of coffee powder.
When FrontStreet Coffee baristas use the Pegasus espresso machine to extract coffee, a 9 bar pressure is generated to "squeeze" the coffee powder. Because the pressure of carbon dioxide in the coffee powder is too high, the water becomes supersaturated with carbon dioxide, so the carbon dioxide cannot be released and is directly integrated into the coffee liquid. During this process, the fat in the coffee will be emulsified, and the fat will be wrapped in carbon dioxide. Since it is lighter than water, everything will gradually stratify, and golden yellow oil will appear on the surface, which is very beautiful.
Espresso component 2: coffee oil (The oil)
At FrontStreet Coffee, after skimming off the top layer of fat, we noticed a slight oil slick on the top of the coffee, which is actually the presence of natural sugar in the coffee. According to food scientists, in roasted coffee, sugar molecules break down at 190°C, causing the roasted coffee to caramelize. When coffee is roasted the right way, it develops a natural sweetness within it.
Espresso component 3: The coffee solids
In a coffee bean, 30% is soluble substances and 70% is wood fiber. This 30% soluble content includes sour molecules, sweet molecules and bitter substances. The order of flavor extraction is acidity-sweetness-bitterness.
we understandespresso beanscomposition, then how is FrontStreet Coffee extracted?Espresso？
FrontStreet Coffee first uses a blend of Ethiopian sun-dried red cherry coffee beans and Honduran sherry coffee beans from whiskey barrels. The ratio is 7:3, and 70% of the Honduran sherry barrel coffee beans are used in thisBlended coffee beansProviding flavor and body, 30% sun-dried Yirgacheffe provides more aroma and acidity.
How FrontStreet Coffee roasts thisNuanyang blended coffee beans？
The Front Street roaster roasts this coffee bean using a gradual reduction method so that the beans can develop simultaneously during the roasting process. When the furnace temperature reaches 210℃, put the pot into the pot, open the damper to 4, firepower 200, temperature recovery point 1'30", 92℃; when the furnace temperature is 140℃, open the damper to 6; at this time, the bean surface turns yellow, the grassy smell disappears completely, and it enters the dehydration stage. When the furnace temperature reaches 1 At 80°C, adjust the heat to 10 and open the damper to the maximum 10. At 9°30°, ugly wrinkles and black spots will appear on the surface of the beans, and the smell of toast will obviously change to the aroma of coffee. It can be defined as the prelude to the first explosion. At this time, you should listen clearly to the sound of the explosion point. The first explosion started at 10'38", then developed to 3'40'', and was cooked at 197.5℃.
How does FrontStreet Coffee extract thisNuanyang blended coffee beans？
Pressure: 9 bar
Temperature: 90.5~96 degrees Celsius
Time: 20~30 sec
Amount of powder: 20g (double espresso)
Extraction volume: 40ml
extractionEspressoFlavor:Smooth taste, medium body, obvious fruit acidity in the entrance accompanied by a light berry aroma, whiskey aroma, rich chocolate flavor, and obvious sweetness.
How do we taste a cup of espresso?
After the coffee is extracted, as the coffee liquid settles, the top oil covers the surface, and the coffee begins to separate into layers in the cup. Therefore, Front Street suggests that through the stirring action, all the layered soluble objects in the coffee can be re-integrated, thereby creating a more balanced and complete flavor experience. After stirring and lowering the temperature of the coffee, it helps to further enhance the flavor of the coffee and avoid a coffee that is too bitter on the first sip.
What do you drink espresso for?
Compared with Pour over(V60) coffee, espresso is characterized by a strong and fast taste. It cannot distinguish the flavors of high, medium and low temperatures like Pour over(V60) coffee. After all, it is finished before it cools down. FrontStreet Coffee uses a low powder-to-water ratio and high-pressure extraction to create a high concentration that makes the espresso taste rich and intense.
In addition, concentrated caffeine is extracted under high pressure to produce its unique product "Crema", which also provides a unique taste experience for espresso. So when drinking espresso, we tend to appreciate its texture, aroma, and aftertaste, plus several distinct flavors.
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
