What is coffee fat? what kind of Italian coffee beans are rich in oil and fat? how much is a pack of coffee beans?

Professional coffee knowledge exchange more coffee bean information please follow the coffee workshop (Wechat official account cafe_style)

When it comes to espresso, oil must be an important indicator. In addition to giving espresso important look-and-feel characteristics, oil also changes the flavor and taste of espresso to some extent. But what is grease actually? have you thought about this question?

Literally, oil is the golden to chocolate liquid just extracted from the upper layer of espresso, which is inseparable from the "pressure" itself. after the extraction is completed, the lighter color of the oil floats on the upper layer, while the darker color of the coffee liquid will rest in the lower layer.

Concentrated oil is a mixture of many substances: water extracts the soluble substances in the coffee powder layer under heating and pressurization, which emulsifies the natural fat and oil in the coffee and mixes the air to form some tiny and fine bubbles. At the same time, because the roasted fresh coffee itself releases a certain amount of carbon dioxide, these gases are also involved in the above-mentioned emulsification reaction; the more freshly roasted coffee, the more carbon dioxide it emits. so we can also see large bubbles gushing out during the extraction process.

On the one hand, oil reflects the status of raw coffee beans, the more oil, the more natural oil content of coffee beans, which is also related to the handling of raw beans; at the same time, it also reflects the roasting degree and freshness of coffee beans. Of course, some people think that concentrated fat tastes good, but this is not absolutely true-Luodou's fat, for example, is beautiful.

The amount of oil and fat is also related to several other factors:

◆ raw bean treatment method

For example, sun-or honey-treated beans will contain more sugar and oil than water-washed beans, and more oil will be produced during extraction; moreover, different producing areas will bring different characteristics to beans, such as humid climates. the performance and oil content in the cup will be very different from those of other beans.

◆ Bake date

An appropriate amount of carbon dioxide involved in the emulsification process can indeed increase the amount of oil, but excessive carbon dioxide will only affect the extraction effect of coffee substances.

◆ baking degree

Lightly baked beans produce lighter colors and thinner oils, while deep-baked beans produce thicker and darker oils. However, it should be noted that over-roasted coffee beans will produce too much oil, which will stick to packaging containers or coffee equipment and cannot enter the emulsification process; at the same time, the separated oil will oxidize and deteriorate when exposed to air, which may also affect the state and stability of concentrated oil.

◆ hardware equipment

Rich concentrated oil is the product of high temperature and high pressure, some fully automatic or household equipment do not have a stable pressure system and can not well emulsify oil and carbon dioxide, the taste and flavor of its "oil" will be very different from that of normal oil.

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