Coffee bean oil is an important indicator of Espresso. Which kind of coffee bean is more likely to produce oil when making coffee?

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Crema is an important indicator of Espresso success or failure.

A standard Espresso is only about one ounce and is covered with a thin layer of foam called "Crema". The more detailed the foam, the better, like a layer of colored cream and a dark brown color close to ochre red; if you see a layer of golden foam successfully extracted, it may be that the coffee beans are not fresh enough and the Espresso will not be thick. In addition, the thickness of Crema should account for at least 10% of coffee, and it can last for more than 3 minutes without cracks.

People who like to drink Espresso regard Crema as an indicator of quality. In fact, it is composed of a large group of small foams, and the structure of each small foam is surrounded by a layer of water-based film around carbon dioxide. Of course, fresh coffee has more carbon dioxide inside, and espresso brewed with it also contains more Crema, which makes it feel "velvety and soft". The water-based film contains a large amount of water, which will be released very quickly, so that the film can not be supported and burst, and the Crema will disappear. No wonder Italians always wait at the bar and finish that Espresso in 30 seconds.

Tips for successful cooking of Espresso:

◎ coffee beans must be fresh

◎ coffee powder must be properly filled and pressed.

◎ must adopt espresso grindness (Espresso Grind).

◎ uses concentrated mixed coffee beans (Espresso Blend)

◎ uses moderately roasted coffee beans (Chinese prefer heavy-roasted coffee beans with no sour taste)

A good espresso has a compact, well-textured, long-lasting layer of fat a few centimeters thick.

Oil is not only a feature of espresso, but also preserves the aroma of the coffee in the cup and prevents the aroma from drifting into the air. Therefore, this layer of grease acts like some kind of protective layer. The color of the grease ranges from dark brown to light brown, and even has a reddish hue. The so-called tiger spot, the dark stripes on the oil, is caused by the coffee powder particles in the coffee, indicating that this cup of espresso is brewed in a perfect way.

This is not just a proof of quality, there is a later sense of smell and taste, it is also critical to the preservation of the direction of the coffee, allowing the aroma to be retained until the coffee is finished.

Brand recommendation of coffee beans with lots of ● oil

Located in Dongshankou, Yuexiu District, Guangzhou, Qianjie Coffee freshly roasted Italian blended coffee beans are fully guaranteed in brand and quality, and the amount of fat is good, so it is suitable for making fancy coffee and lace coffee. And more importantly, the performance-to-price ratio is extremely high. Take the commercially recommended style of commercial blended coffee beans as an example, a pack of 454 grams, the price is only about 60 yuan. According to the calculation of 10 grams of powder for a single cup of espresso, a packet can make 45 cups of coffee, which costs less than 1.5 yuan per cup. Even if you use two heads per cup of espresso and 20 grams of powder per serving, the price of a cup of double espresso concentrate is no more than 3 yuan. Compared with the price of hundreds of yuan a pack sold by a well-known brand, it can be described as a conscience recommendation.

Qianjie coffee: Guangzhou bakery, the store is small but a variety of beans, you can find a variety of unknown beans, but also provide online store services. Https://shop104210103.taobao.com