In recent years, with the rise of the specialty coffee wave, more and more people choose to buy beans at home, brew themselves a cup of coffee, and enjoy their leisure time. But everything is difficult at the beginning. Many beginners will wonder, "The coffee I drank in your shop is so delicious, why can't I brew the same taste when I go home?" There are many reasons for this, and this article on Front Street Coffee will explain them to you.
The unity of coffee beans
First of all, we first ensure that the coffee you drink in the store and the coffee beans you purchase are from the same store and the same batch of coffee beans. Coffee beans are agricultural products, not industrial assembly line products, and their flavors will be slightly different in different years or different batches. For example, some stable large-producing areas can ensure the uniformity of the quality of each batch of coffee for a long time, while some emerging farms or small-producing areas cannot maintain a stable coffee flavor. The previous batch may have a good flavor and the next batch may have a slightly inferior flavor.
Certainty of Brewing Parameters
Usually when you buy coffee beans after tasting them in the store, Front Street Coffee will share the brewing parameters of the beans. Among the many parameters, the ratio of powder to water, water temperature, amount of powder, and brewing technique are proportional and easy to understand and synchronize. The following parameters are worthy of attention.
1.water quality
The essence of coffee extraction is that water dissolves the flavor substances in the coffee, so water is the most important factor.
PHvalue——Alkaline water will reduce the acidity, and water that is too high willPHThe value will cause the coffee to have an alkaline taste; conversely, the more acidic water will increase the acidity, and the value that is too low willPHThe value will give the coffee a kick.
TDS - If the PPM is too high (higher than 225), the coffee will be under-extracted and the flavor cannot be released; if the TDS is too low (less than 75 ppm), the coffee will be easily over-extracted, resulting in bitter coffee. The optimal TDS value should be between 125-175ppm (SCAA standard).
The water source used by each coffee shop is different, and the TDS will naturally be different. Therefore, when you are thinking about brewing at home, you can pay attention to this parameter, or you can ask what water source your favorite coffee shop uses.
2.Grinding degree
This is an important reason for many problems in coffee brewing. Maybe the store will provide a grinding degree and a reference, but each store's grinder is different. We also need to pay attention to whether our grinder is evenly ground, the amount of fine powder, the particle state, etc. Even if it is the same grinder, the state of the ground coffee powder is different (the length of use will lead to grinding deviation), not to mention that you and the merchant are not using the same machine.
The solution to this problem is to unify standards. For example, Front Street will make national standards20No. (850micron) standard sieve for sieving calibration. According toSCAACupping standard, cupping grind size is20No. standard sieve pass rate70-75%. So the grinding size of Front Street Coffee’s Pour over(V60) light roasted coffee is generally between75-80%within the range.
Front Street received feedback from many friends about the pictures of the powder layer after brewing. Most of them did not produce the taste of coffee, either the grinding was too coarse or the grinding was too fine, and the coffee powder was uneven (too much fine powder). Therefore, if these situations occur, you might as well try using a standard sieve to calibrate your coffee grinding degree.
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
