The weather is getting hotter and hotter, and the ice-drip coffee at Front Street Cafe is also selling like hotcakes. In fact, iced drip coffee is not as complicated as everyone believes. Today Front Street will share it.How to make iced drip coffee and discuss its caffeine content。
The origin of iced drip coffee
"In the 1600s, Dutch sailors were carrying coffee back to Europe from the then colonial Indonesia. They couldn't drink hot coffee because there was no hot water in the ship, so they came up with this idea.Ice drip coffee. The coffee extracted with cold water has a soft and smooth taste and a fragrant aroma. It is not only loved by the crew, but also by ordinary people. "
Okay! The above origin story was actually made up by Japanese coffee industry players to promote the ice drip pot, and it is one of the marketing methods. In fact, Western countries, including the Netherlands, mainly use the so-called "Cold-Brew" immersion method (soaking coffee powder in cold water for a long time) instead of the Japanese dripping method (extraction method in which ice water is dropped drop by drop). Moreover, there is no so-called Dutch Coffee in the West.
Ice drip coffeeinvention
Although iced coffee is called Dutch coffee, it has no deep connection with the Netherlands. On the contrary, it has a deep connection with Japan, so it is also called Kyoto coffee.
When the owner of Kyoto Hanabusa Coffee was reading a coffee book, he read about the local people's method of brewing coffee in Indonesia, a Dutch colony at that time, and was very interested in this method. Based on the description in the book at that time, he developed an ice-drip device with the help of a chemistry student at Kyoto University and a medical device company. He wanted to reproduce the Indonesian brewing method, and thus invented ice-drip coffee. Later, it became popular in Europe and the United States. Because Europeans and Americans were not aware of this history, they simply called it Kyoto coffee.
Ice drip is extracted with near-zero ice water, which reduces the volatilization of coffee flavors at low temperatures and stores as much coffee aroma as possible in the coffee liquid. When you drink it into your mouth, the temperature of the coffee liquid rises and the aroma contained in the coffee liquid suddenly explodes, allowing coffee drinkers to feel the strong aroma on the back of their tongues. This sudden explosion of aroma will give people a great sense of happiness.
Regarding the selection of raw materials for ice-drip coffee, it needs to be based on personal requirements for coffee taste. If you want a coffee with bright acidity and a light and clean taste, you can choose washed coffee, such as Front Street Butterfly, Front Street Fruit Tintin, and Front Street Kaffa Forest; if you want a nutty, chocolate flavor, and a mellow and smooth taste, you can choose medium-dark roasted coffee, such as Front Street Columbia Whelan, Front Street Bird of Paradise, and Front Street Queen's Manor;
In addition, there are also fermentation-processed coffees that have attracted more attention in recent years, such as Front Street Strawberry Candy and Front Street Xizhao. They all have strong ripe fruit aromas and the ice drops produced are also rich in layers. It is best for us to express our needs first when buying, so as to avoid buying beans we don’t like.
front street coffeeIce drip coffeeMake and share
1. The water to powder ratio used in Front Street Coffee Ice Drip is 1:10, that is, 60 grams of coffee powder extracts 600 ml of coffee liquid.
2. Place a piece of round filter paper at the bottom of the powder cup, wet it with water and fit it to the cup wall, then add 60g of ground coffee powder (the size of coarse sugar, Front Street store)Using EK-43s#10 scale), and then smooth the surface of the coffee, or use the weight of the powder hammer to lightly press the powder layer to make the surface smooth.
3. Remember to put a piece of filter paper on the noodles. Because the tension of the filter paper can make the water evenly distributed, if there is no filter paper, long-term water droplets will make a pit in the powder bed.
4. Use ice water to "pre-soak". In fact, this is similar to the steaming process in hand brewing, which can improve the extraction effect and the consistency of the finished product. Direct ice dripping may cause the powder layer to be unevenly moistened. Some of the coffee powder will be over-extracted while other parts of the coffee powder will not participate in the extraction.
5. Put a 1:1 mixture of ice and water into the water bottle, and adjust the regulating valve for about 10 seconds to make 7 drops of water.
6. After making, pour the coffee liquid into a sealed glass bottle and put it in the refrigerator to ferment overnight. This will allow the flavors of the coffee to blend together, making it taste better and easier to drink.
How high is the caffeine content in Ice Drops?
Many people think that the caffeine content of ice-drip coffee is low because the lower the water temperature, the less easily the caffeine dissolves (the lowest temperature at which caffeine dissolves is above 80 degrees Celsius). However, the low amount of caffeine extracted by cold water cannot be underestimated after long-term accumulation. Therefore, some people believe that ice-drip coffee has a higher caffeine content. Many experimental results have also proved this statement.
There are relevant studies givenFor reference, iced drip coffee (a cup of 20g powder/200ml coffee)approx.135mg。For reference, a cup of espresso (20g powder/40g coffee) is about 100mg. Therefore, including American, latte, Australian white, cappuccito and other varieties, the caffeine content is lower than ice drip.
But Front Street needs to emphasize that a cup of ice-drip coffee will vary greatly in caffeine content depending on the beans used in various cafes, the grinding thickness, the interval between water drops, and the total extraction time. In addition, everyone has different tolerance to caffeine. Some friends can stay up until midnight after drinking a small cup, while others can still fall asleep on time after drinking a large cup. Therefore,Therefore, for people who are particularly sensitive to caffeine, Front Street recommends that they consume as little coffee as possible, no matter what kind of coffee.
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
