UpdateFor more knowledge about specialty coffee, please follow the WeChat public account: FrontStreet Coffee
Friends who have made coffee must know that the standard Americano is a combination of concentrated coffee and water. In other words, whether the Americano tastes good or not depends entirely on the quality of the concentrate.
The pain of extracting espresso can only be understood by experiencing it. If you have an espresso machine at home, you may need to use half a pack of beans to make espresso. Even for baristas, it takes seven or eight shots to get the new espresso beans into a good-tasting state. So Front Street is here to tell you how to adjust to the right espresso quickly and efficiently.
If you want to quickly adjust the espresso, you need to quickly identify the problem and adjust the corresponding parameters. This requires you to be very aware of the impact of changes in various parameters. For example, the parameters we can adjust in espresso include grinding degree, powder volume, liquid output, water temperature, and pressure. (The amount of powder and the amount of liquid output are used here to represent the ratio, and time is a passive parameter)
Generally, water temperature and pressure will not be changed easily unless the settings are unreasonable. So what really needs to be adjusted are the three parameters of grinding degree, powder volume, and liquid output. The main thing among these three is to adjust the grinding degree. Many espresso adjustments can be solved by fine-tuning the grinding scale. Only a few need to adjust the powder amount or liquid output.
The amount of powder can also achieve the same effect, but it will be limited by the powder bowl. There is a concave line in the powder bowl. The pressed coffee powder cake is just close to but not exceeding the concave line, which is a reasonable amount of powder. Generally speaking, increasing or decreasing the powder amount by 1g is within a reasonable range. If it is increased too much, the brewing head will not be able to hold it. If it is reduced too much, the powder cake will be easily washed away by water. So this adjustment is generally used as a final flavor tweak.
To make espresso, we use Front Street Boutique 100% Arabica coffee beans, which are blended from Brazil and Colombia, the world's two largest coffee producing countries. It has rich flavors of roasted peanuts, caramel, and creamy chocolate. It has a rich aroma and a smooth taste. It is suitable for those who don't like sour coffee. You can place orders at Front Street Tmall flagship store or Front Street Taobao store.
Adjusting the liquid output is actually used to adjust the relationship between concentration and extraction rate. Its detailed usage will be discussed below.
Apply the espresso extraction formula: 1:2 powder-to-liquid ratio, 25-30 seconds. The amount of powder depends on the capacity of the powder bowl. For example, the reasonable capacity of the powder bowl used in Front Street is 20g. Then use 20g of coffee powder to extract 40g of coffee liquid. The time is controlled at 25-30 seconds as the extraction plan. Then first select a grinding thickness that is similar to the naked eye for extraction. Use the time difference to judge the difference in grinding scale.
Adjusting the grinding scale depends on the feel of the hand. If you adjust it too much, you will become familiar with the grinder. Once you have the feel, you can get it right in one step. If the time difference from the target is less than 5 seconds, you can adjust it 0.2 grids at a time. If the time difference is too large, you can be bolder and adjust it 0.5-1 grids. Even if the time changes from too long to too short, you can lock the grinding scale range and slowly reduce the range.
Even if the parameters are adjusted to the same parameters as the extraction formula, it does not necessarily mean that the espresso will taste better. This formula only shows that the espresso extracted according to this formula will be more reasonable. In the end, it still needs to be adjusted according to the characteristics of the coffee beans. Front Street lists the adjustment ideas for several situations. It is assumed that the extraction time after grinding determined by the formula is 30 seconds.
1. The espresso coffee has negative flavors such as burnt and bitter, but the concentration is moderate. This may be because the time is too long, resulting in the extraction of the burnt and bitter taste. The general solution is to adjust the grinding degree to be coarser.
3. If the espresso coffee has a rich flavor but a short aftertaste, you can extract more coffee liquid. Try adjusting the ratio to 1:2.5.
1. Coffee contains certain nutrients. The niacin in coffee contains vitamin B, and the content is higher in roasted coffee beans. And there are free fatty acids, caffeine, tannins, etc.
2. Coffee is good for the skin. Coffee can promote metabolic function, activate digestive organs, and is very effective in treating constipation. Taking a bath with coffee powder is a kind of warm therapy and has the effect of losing weight.
3. Coffee has the function of relieving hangover. Drinking coffee after drinking alcohol will rapidly oxidize acetaldehyde converted from alcohol, decompose it into water and carbon dioxide and be excreted from the body.
4. Coffee can eliminate fatigue. To eliminate fatigue, it is necessary to supplement nutrition, rest and sleep, and promote metabolic function, and coffee has these functions.
5. Coffee can help with weight loss. Coffee contains magnesium and potassium, which help the body use insulin, regulate blood sugar levels, and reduce cravings for sweets and snacks. Caffeine helps fat cells break down body fat and use it as fuel for exercise.
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
