Walking on the streets of Guangzhou in the hot summer, sweat flowed from the top of my head to my clothes. Soon, my clothes were soaked. This is a friend you can often see in FrontStreet Coffee stores these days. A cup of iced coffee can instantly save your friends from the stove and return to heaven.
cold brew coffee(Cold Brew Coffee), this is a new way of drinking coffee that has just become popular in recent years. Simply put, it involves soaking coffee powder in cold water for more than 12 hours, performing low-temperature extraction and then filtering. Some extreme methods will use a mixture of ice and water to soak coffee (ice dripping is the principle of ice dripping. The ice cubes are melted and dripped into the coffee powder, which takes a day), and the time is extended to more than 48 hours for the ultimate extraction!

The coffee produced in this way, because high temperatures are not used, the tannins and other components in the coffee beans dissolve very little, and the taste is very smooth, fresh and slightly sweet, which brings out the natural fruity aroma and fruity sweetness in the coffee, while the sour and bitter taste is relatively low. But don’t think that it’s not too bitter to be refreshing. In fact, due to the long extraction time, the caffeine in the coffee is still fully extracted, and sometimes the content is much higher than that of hot coffee!
FrontStreet CoffeeHow to make cold brew coffee
In fact, the preparation of cold brew coffee is very simple. You can make delicious cold brew coffee even at home by following the recipe on the front street.

Place it in the refrigerator for 12-24 hours. Use filter paper to filter out the coffee grounds to get clean coffee liquid. Then use a clean sealed bottle to put the coffee liquid in and refrigerate it for about 4 hours before drinking. This will make it taste better!
The longer the cold brew, the better?
It is known that the strength of coffee increases with the time it is extracted. The longer the extraction time, the stronger the flavor of the coffee, the higher the concentration, the more obvious the sweet and sour feeling; the shorter the extraction time, the softer the flavor, the lower the concentration, the less obvious the sweet and sour feeling. Generally, it is not recommended to soak Front Street for more than 24 hours.
Of course, the flavor of cold brewed coffee is also different depending on the soaking time. Therefore, Front Street conducted a set of coffee soaking experiments to measure the flavor performance of coffee at different soaking times for your reference.

The ones with the strongest and most complex flavors are those extracted for 24 hours. Since the soaking time is the longest among the four groups, the extracted ingredients are also the most complete among the four groups, and the water saturation is also the highest.
The levels of extraction time of 12 hours are also very rich. Although the complexity of the extracted coffee liquid is not as great as that of 24 hours, this group will transition from the sour and sweet taste in the mouth to sweetness, and have a nutty flavor when returning to sweetness. Since the extraction time is shorter than 24 hours, more active fruit flavor molecules are extracted, while slightly less inert molecules such as nut flavor are extracted. In other words, its flavor levels transition from sour, sweet, bitter, to sweet, with clear layers.
The flavor with an extraction time of 8 hours will be fresher and cleaner, with more fruit flavor extracted. However, due to the shorter extraction time, the layering of flavor is not as rich as the first two groups with longer extraction times. The difference is that the overall feeling of this group is better, the fruit and nut flavors are softer, and the aftertaste is sweet sucrose.
The overall taste with an extraction time of 4 hours is the thinnest among the four groups, but the aroma is sufficient. This is because the soaking time is relatively short, so that the aroma is not worn away too much during the fermentation process. The extraction rate of this group is also the lowest compared to these four groups. The sourness will be more towards citrus fruits, while the nutty flavor will be weaker.
From the above analysis, we know that cold brew coffee does not taste better the longer it is extracted. Whether it tastes good or not is a very subjective matter. Some people like fresh and clean coffee, while others like strong, fermented coffee. These all vary from person to person. From time to time, customers come to FrontStreet Coffee stores and order a cup of iced drip coffee. Sometimes they say it is too strong, sometimes they say it is too light. Our solution to this situation is to reduce the ratio of powder to water and add ice when serving. As the ice melts, the concentration of the coffee drops to the concentration that satisfies the customer.
For those who like a stronger sense of fermentation, as analyzed above by FrontStreet Coffee, it can be seen that as time goes by, the fermentation of the coffee liquid becomes heavier, but the concentration of the coffee is richer and the taste is more complex.
What kind of coffee beans are suitable for cold brew coffee?
Front Street recommends that you choose some lightly roasted coffee beans for cold brewing. This type of coffee generally exhibits pleasant acidity without bitterness, making it very suitable for summer iced drinks.
Front Street can give you some recommendations on specific coffee beans. If you want to try a more refreshing feeling, you can choose lightly roasted washed coffee beans, such as washed Yirgacheffe, washed Geisha, and Guatemala Flora coffee beans. If you want a juicy and sweet taste, you can choose light roasted sun-dried coffee beans, such as Oiran coffee, Kenyan coffee, and sun-dried Gesha.

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: qjcoffeex
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