Coffee bean oil amount on the impact of coffee flower_less oil coffee beans can pull flowers

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The principle of ● flower drawing

Espresso (Espresso) has a thick layer of oil (Crema) that produces enough surface tension to hold up milk bubbles made up of tiny bubbles. Through the arrangement of milk bubbles and oils, a variety of patterns can be made, so the key to the success of flower drawing is not only the barista's skills, but also milk bubbles and coffee oils. The prerequisite for the success of flower drawing is that the substrate has sufficient surface tension, so not only coffee can be made, but general water is also possible to be successful. But the difference is whether it tastes good (or can you drink it) and whether you can make a beautiful pattern.

The formation of flower drawing

To put it simply, make a good latte: high-quality espresso and dense milk foam are indispensable. Coffee beans will emulsify the insoluble oil of coffee powder under high temperature and high pressure, and a large amount of carbon dioxide will be dissolved in the liquid. At this time, in order to stabilize these small bubbles, coffee makes these bubbles stable and elastic through "protein melanin". This is what we often call Crema. Another important key is the formation of milk bubbles. The difference between milk and milk bubbles is that the addition of steam makes milk protein form a lot of dense and small foams under the action of surface tension. High fat makes the structure of milk bubbles more stable and lasting.

The color of the coffee oil foam on the surface of coffee will affect the black and white clarity of the flower; the fineness of the oil foam tissue will affect the brightness of the pattern; if the body of the coffee bean is sour, it is easy to destroy the structure of the milk bubble.

In general, the base of Laohua coffee is espresso, because a thick layer of oil on the concentrate can produce enough surface tension to hold up milk bubbles made of tiny bubbles.

Through the arrangement of milk foam and oil, you can make a variety of patterns, so the key to the success of flower drawing, in addition to technology, milk foam and coffee oil are also very important factors.

● "Milk Art (latte art)" from this name, it is not difficult to see the importance of milk for flower drawing.

Pour the milk into the flower jar, the volume of the milk will expand and overflow when it turns into foam, so you can't have too much milk, usually pour the milk to the bottom of the V-shaped cup mouth.

Coffee flower must use whole milk, and control the temperature at 60 to 70 degrees Celsius, milk tank and sprinkler at an angle of 45 degrees, the milk foam should be delicate and smooth, there can be no large milk bubbles.

Why can't milk be overheated? Because after the milk is heated to more than 85 degrees Celsius, the protein and fat in the milk begin to be broken down and destroyed, and the milk will begin to be reduced to show white water. Pulling flowers with milk foam requires that there is no big bubble, and the milk has become watery. Not only can not pull out good-looking flowers, but also affect the overall taste of coffee.

Before the foam is separated from the milk, pour the milk into the extracted concentrate, so that the coffee and milk are fully combined. When the cup is full of 6 or 7 minutes, draw the figure you want through the swing of the cup and the vat.

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