How much is black coffee beans? Why is black coffee beans delicious? What brand of black coffee beans is delicious?

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Most of the aromas of black coffee beans are concentrated in two kinds of oils. Follow the editor to learn more.

Let's first take a look at what lipids are, that is, aromatic oil concentrates, also known as lipids, generally refer to fats, oils, and waxes. Most of the coffee bean oil is stored in the bean embryo, and only a very small part is covered on the bean surface in the form of wax. Arabica's lipids account for about 15% of the bean weight, 60% higher than Robusta. It is rich in lipids, which is one of the reasons why Arabica is much better than Robsta in the interpretation of fragrance, because many aromatic aliphatic carboxylic acids (including citric acid, malic acid, acetic acid, lactic acid and formic acid) are soluble in oils. Scientists who studied Central and South American coffee also found that coffee cups rich in lipids had significantly higher scores.

The lipids of black coffee beans increase rather than decrease after baking, which is due to the fact that most of the proteins and sugars are degraded more than interesting during baking. 75% of coffee roasted lipids are presented as triglycerides and 19% as fatty acids. Most of Arabica's aromatics are concentrated in two oils, Cafestol and Kahweol, which are the best actors and actresses in the aroma of coffee. However, the caffeine in Robusta is only half that of Arabica, but it contains almost no caffeine, so the content of caffeine (unique to Arabica) is often used to detect the ratio of robusta beans to Arabica in the comprehensive formula.

Scientists have also found that the aromatic essence of coffee cooked beans is all concentrated in the fat of coffee alcohol and coffee white alcohol, which weighs less than 3% of coffee mature beans. Without coffee oil, black coffee becomes ordinary bitter water, which may be worse than soybeans. In other words, 97% of cooked coffee beans are unrelated carbon fibers, caffeine or other minerals. If you spend 1000 yuan on 1000 grams of coffee beans, you will drink only 30 grams of aroma, that is, 33. 3 yuan per gram of coffee oil!

Up to now, scientists have isolated more than 800 kinds of aromatic compounds from ripe coffee beans, mainly from sugar, protein, organic acid, trigonelline, and fat of raw beans, which are roasted in a short period of 20 minutes. Caramelization, Mena reaction, degradation and polymerization are completed, and the most aromatic compounds in the world are created, which are more complex than can be replicated in today's high-tech laboratories.

● black coffee bean brand recommendation

The single product of Qianjie coffee roasting & Italian black coffee beans: Yega Sheffield Coffee, Brazilian Coffee, Manning Coffee and so on are fully guaranteed in brand and quality, suitable for brewing with all kinds of utensils. And more importantly, the performance-to-price ratio is extremely high, a pack of half a pound 227 grams, the price is only 80-90 yuan. According to the calculation of 15 grams of powder per cup of hand-brewed coffee, 15 cups of coffee can be made in a bag, and each cup of coffee costs only about 6 yuan, which is very cost-effective for the normal price of 30 or 40 yuan a cup in a cafe.

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