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A while ago, Starbucks data showed that sales of cold drinks now account for 70% of total beverage sales. Among them, cold brew coffee is becoming more and more popular among the new generation of consumers. Why is a simple cold brew coffee so popular? In this article, FrontStreet Coffee will talk to you about the charm of low-temperature extraction coffee.
The science behind cold brew
The reason why many people choose cold brew coffee is not only the easy-drinking temperature, but also its smooth and full coffee taste, which can better showcase the unique aroma and taste of a coffee bean. Different from high temperature/hot water extraction coffee, cold brew coffee is a coffee product that uses cold water or room temperature water to soak coffee powder, put it in the refrigerator and extract it for 8-12 hours.

In terms of flavor, high temperature will decompose the tannins in coffee, causing sourness and bitterness. Studies have shown that cold-brewed coffee contains 67% less acid than hot-brewed coffee. Cold brew coffee has less acidity and is generally popular among people.
The low temperature conditions and long-term contact with coffee powder allow only small molecules of flavor substances to be extracted; therefore, only small molecules such as fruit acid and floral aroma are dissolved. Flavor substances with larger molecules, such as smoked flavor, roasted flavor, etc., are difficult to extract.

This is why cold brew coffee doesn’t smell as strong, but tastes smoother. Made using the same coffee beans, cold brew coffee will taste fuller and cleaner than hot brew coffee~
Recommended single-origin coffee beans for cold brew

Front Street Yirgacheffe Sun-Dried Red Cherry Coffee Beans
Country: Ethiopia
Origin: Yirgacheffe
Altitude: 2300m
Variety: Local native species
Treatment method: Sun treatment
Flavor: berry, lemon, strawberry, fermented wine aroma

Front Street Panama Butterfly Coffee Beans
Country: Panama
Origin: Poquet
Altitude: 1600m
Variety: 70% Geisha + 30% Catulakaduai
Treatment method: washing treatment
Flavor: floral, citrus, nuts, tea, honey

Front Street Sherry Coffee Beans
Country: Honduras
Production area: Massaguara Moka Estate
Altitude: 1500-1700m
Varieties: Kaduura, Kaduai, Pacas
Processing method: Whiskey barrel fermentation
Flavor: whiskey, vanilla cream, almond, dark chocolate, caramel
How to make cold brew coffee
If you want your cold brew coffee to taste great, it’s important to use freshly roasted coffee beans! All coffee beans sold by FrontStreet Coffee are shipped within 5 days after roasting and are in the state of the original beans. Although there is a grinding service, Front Street still recommends fresh grinding and brewing, so that the aroma and taste of the coffee will be better and more complete.
When making cold brew coffee, grind it to medium fineness/the size of white sugar, then put it into a clean container that can be sealed, add water at a powder to water ratio of 1:10-1:13, and put it in the refrigerator for 8-12 hours.

After the extraction is completed, use filter paper/filter tool to filter the coffee grounds and the coffee liquid obtained is cold brew coffee. After the filtration is completed, it should be sealed and stored. The best tasting period is 72 hours, and the storage period is recommended to be no more than 5 days.
What are the benefits and effects of drinking cold brew coffee?
Cold brew coffee has more caffeine
Front Street searched the data and found that the amount of caffeine depends on the type of coffee and the extraction time of the coffee. The longer the extraction time, the higher the caffeine content. Therefore, coffee extracted slowly at low temperature has a better refreshing effect than coffee extracted quickly at high temperature.

Cold brew coffee is slightly acidic
Cold brew coffee is more alkaline than hot brewed coffee. Hot coffee has a higher concentration of titratable acidic compounds and a lower pH. If you're prone to acid reflux or heartburn, hot brewed coffee can trigger these discomforts, whereas drinking cold brew is less likely to cause these conditions.

Cold brew coffee is easy to make
Compared with other coffees that require a bunch of complex equipment and extraction parameters, cold brewing does not require too much equipment, and it is particularly simple to operate at home. You only need to prepare a cold brewing pot and have a refrigerator. Of course, if you drink it by yourself, it will be no problem even if you replace it with a clean container that is large enough. In addition, because cold brew coffee is soaked at low temperature, the coffee produced has a high error tolerance rate. Unlike hand brewing and espresso machines, which may accidentally overturn, when the coffee beans of different flavors are used in the street, it will also show a different flavor and tonality, which is simply good news for lazy people at home.
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