For more specialty coffee knowledge, please pay attention to: Frontstreet Coffee
The cicadas are chirping in the distance, the dog days of summer have just begun, the heat wave is rolling on the streets, and boiling water is flowing out of the faucets at home. The barista on Front Street had just opened the door, and my friend entered the store on Front Street and asked if there was any cold brew coffee. If you want to get through the remaining forty days, the hottest days of the year, you really can't get through the day without a cup of iced coffee.
cold brew coffeeIt sounds refreshing and refreshing, but when the barista at FrontStreet Coffee asked friends what the difference between iced drip coffee and cold brew coffee was, they couldn't answer. Next, FrontStreet Coffee will tell you what ice drip coffee is, what cold brew coffee is, and how to make a cup of ice coffee at home.
As summer approaches, more and more cafes are putting the option of iced drip coffee back on their menus. What is iced drip coffee? The so-called ice-drip coffee uses a mixture of ice water and lets the ice water drip down to the coffee powder drop by drop. Since the extraction process of ice-drip coffee is very slow and usually takes 6 to 12 hours, the price of ice-drip coffee is higher.
On the menu of FrontStreet Coffee, due to equipment limitations, the only option for cold brew coffee is iced drip coffee. At the same time, because the equipment for making ice-drip coffee is too complicated, many friends have been discouraged from the idea of making ice-drip coffee at home.
FrontStreet Coffee's equipment for making ice-drip coffee is placed next to the espresso machine. The equipment is mainly divided into five parts: water container, regulating valve, powder cup, snake tube, and coffee liquid container. Each part performs its own duties. The water container is used to load the ice-water mixture, the regulating valve is used to adjust the dripping speed, the powder cup is used to collect coffee powder, the snake-shaped tube is convenient for observing the color of the coffee liquid, and the bottom container is used to contain the extracted coffee liquid.
The specific steps for making ice-drip coffee at FrontStreet Coffee are as follows:
Amount of powder: 60 grams
Pink to water ratio: 1:10
Grinding degree: Chinese standard No. 20 screen pass rate 85%
Time: 6-8 hours
1. Take out the powder cup, moisten the bottom and lay the filter paper so that the filter paper sticks tightly
2. Pour 60 grams of ground coffee powder into the powder cup, smooth the surface and lay it with round filter paper
3. Pour a small amount of ice water or room temperature water to moisten the coffee powder
4. Add an appropriate amount of ice-water mixture into the water container
5. Adjust the regulating valve to a speed of 5 drops of water in 10 seconds
6. After the extraction is completed, put the coffee liquid into a sealable container and place it in the refrigerator to refrigerate for one night before drinking.
Due to the high price and time cost of ice-drip coffee equipment, friends are not very willing to make ice-drip coffee at home. But that’s not a reason why you can’t make cold brew coffee at home.
Even if you don’t have the equipment to make iced drip coffee at home, that doesn’t mean you can’t make cold brew coffee at home. Cold brew coffee literally means coffee obtained by extracting coffee powder with low-temperature water. Understood in this way, iced drip coffee is a type of cold brew coffee, and cold brew coffee is also a type of cold brew coffee.
Therefore, it is extremely easy to enjoy ice-cold coffee at home. Next, FrontStreet Coffee will introduce to you how to make cold brew coffee.
The specific steps for making cold brew coffee at FrontStreet Coffee are as follows:
Amount of powder: 60 grams
Pink to water ratio: 1:10
Time: 8-12 hours
Grinding degree: Chinese standard No. 20 screen pass rate 85%
1. Choose a sealable container
2. Pour the ground coffee powder into the container
3. Pour in room temperature water according to the ratio of powder to water of 1:10
4. Place in the refrigerator for 8-12 hours
5. Take out and filter
6. Seal and refrigerate the filtered coffee liquid for 12 hours before drinking
【About grinding degree】
Since the water temperature used in cold brew coffee is relatively low, which is quite different from the usual Pour over(V60) coffee of about 90 degrees Celsius, low-temperature water extracts coffee powder. Since the rate of material exchange is greatly slowed down, in addition to extending the extraction time, it is also necessary to finer the grinding degree of the coffee beans, try to increase the contact area between the water and the surface of the coffee powder particles, and extract as much of the ideal flavor substances in the coffee powder as possible.
However, if the coffee powder particles are too fine, too many flavor substances will be extracted, including some unpleasant bitterness; if the coffee particles are too thick, the flavor will eventually be unclear and the taste will be too light. FrontStreet Coffee has found through many tests that the grinding degree of the Chinese standard No. 20 screen with a passing rate of 85% is more ideal.
[About the ratio of powder to water]
Everyone has their own preferences for vegetables and radishes. Since every coffee drinker has different needs for coffee concentration, some like it strong and some like it light, so FrontStreet Coffee generally uses a 1:10 ratio of powder to water when making iced drip coffee, and adds ice cubes when it is produced. Those who want a strong drink can drink it as soon as possible, while those who want a lighter drink can wait for the ice cubes to melt slowly. As the ice cubes melt, the concentration of the coffee will decrease.
【About coffee beans】
Since cold brew coffee is coffee extracted at low temperature and for a long time, more small molecular substances in the coffee beans such as floral aroma and fruit acid are extracted, while large molecular substances such as tannic acid and other bitter substances are difficult to extract. In addition, after the extraction is completed, it needs to go through 12 hours of low-temperature refrigeration fermentation, so the flavor has an obvious sense of fermentation and the sweet flavor of the coffee beans itself, and the taste is thick, smooth and refreshing.
Therefore, when FrontStreet Coffee chooses coffee beans for cold brew coffee, they generally choose some with better acidity or unique flavor. Among them, Kenyan coffee beans and Honduran sherry coffee beans are good choices.
FrontStreet Coffee: Kenyan cherry tomato coffee beans
Origin: Thika, Kenya
Processing Plant: Asali Honey Processing Plant
Altitude: 1550 meters - 1750 meters
Variety: SL28, SL34
Treatment method: K72 water washing treatment method
FrontStreet Coffee: Honduran sherry coffee beans
Origin: Masaguala, Honduras
Manor: Moka Manor
Altitude: 1500 meters - 1700 meters
Varieties: Kaduura, Kaduai, Pacas
Processing method: Exquisite washing & whiskey barrel fermentation
FrontStreet Coffee's ice-drip coffee made from Kenyan coffee beans has the flavor of plum, cherry tomato and caramel. It is sour, sweet and very refreshing overall, suitable for quenching thirst and fatigue in the hot summer.
The ice-drip coffee made from FrontStreet Coffee's sherry coffee beans has a rich flavor of vanilla, cream, and oak barrels. It is blessed by low-temperature and long-term fermentation. The whole thing is like the entrance of sherry whiskey, which is very unique.
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
