What is the effect of coffee oil on health? can I drink coffee oil? what is the taste?
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The thickness and duration of espresso oil are directly related to the freshness of coffee. In most cases, the richer the coffee oil is, the fresher the beans are.
At this time, the sour taste of coffee has been weak, can show a thick and rich texture, the main flavor in nuts, caramel, cream, chocolate and other people generally like the taste.
As the roasting deepens, it produces a lot of carbon dioxide, which allows the fat of coffee beans to penetrate to the surface.
Even if it is kept for a month or so, there will be continuous release of carbon dioxide and continuous oozing of grease.
Will the oil of coffee beans lead to the deterioration of coffee beans?
The "oxidation" of oil has nothing to do with the deterioration of beans, oil will not change for a long time, so don't worry. Even so, it is recommended to use well-preserved coffee beans.
When it comes to coffee oil, the most intuitive thing should be the golden fat foam on the Italian concentrate, which we call "Crema". Many people see Crema as the soul of an espresso, but that's only half true.
Many flavor substances in coffee are fat-soluble, and the so-called "emulsification" will occur in the process of coffee extraction. if the extraction method is proper, the emulsified oil-water mixture shows the state of "oil-water". Oil can also retain a large number of water-soluble but highly fugitive flavor.
However, the most terrible thing in life is often this. Causing "miscellaneous astringency" and "throat-biting bitterness" and even "burning taste" are fat-soluble substances.
Although coffee oil is good for flavor, it is by no means the more the better. if you like, you can lick the Crema on top of the Italian concentrate alone, and you will find that although it has a full aroma, it is also quite astringent. This is still under the premise of properly extracted Italian concentration, some Italian coffee, in order to pull flowers, try to extract a little more Crema, resulting in bitterness and mixed taste is also very likely.
The miscellaneous sensation caused by this fat-soluble substance is also a very important factor in the discussion of hand-brewed coffee. In hand-brewed coffee, if there is less oil, it will cause a thin taste, but allowing too much emulsified oil into the coffee liquid will also cause bad flavor, so in hand-brewing, how to use proper extraction to achieve a balance between taste and flavor of the oil extraction point is also a science, and it is also a flavor aspect that is most difficult to control by mobilizing the so-called "parameters".
Fat brings sweetness, taste and mellow aroma to coffee, which must be present, otherwise, like a cup of skim milk, the lactose content may be the same, but there is a considerable difference in sweetness between skimmed and full-fat drinks.
Another certainty is that if the oil is allowed to enter the coffee liquid without control, there will naturally be a bad smell caused by improper extraction.
It is certain that coffee oil has a great effect on a cup of coffee, but in fact, most people care about the oil of coffee, not how much it changes the flavor of a cup of coffee. it's another problem that is more closely related to our lives-health.
[health level]
Coffee oil does contain some unhealthy substances that can increase triglycerides and low-density cholesterol in the blood.
Studies have shown that as long as you drink 60mg coffee fat every day, it will increase triglyceride and low-density cholesterol. However, if the current boutique coffee is often used in terms of its own low-pressure extraction mode, the amount of oil extraction of coffee will be small.
Although no filter paper is used, a cup of 120c.c. The coffee oil content of shallow roasted coffee is about 2--3mg, the same amount of deep-roasted coffee roasted to oil, and the coffee oil content is also about 5mg. If filter paper is used for filtering, this value will be reduced to 0.2--0.6mg.
In fact, there is no need to worry about the problem of accidental overintake. There are many antioxidants in coffee, which actually have a corresponding protective effect on cardiovascular maintenance. On the contrary, the espresso extracted with high pressure has a high proportion of espresso oil and a small amount, so you should weigh it a little when visiting the store and don't drink too much.
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How to judge whether the coffee brewed by hand is good or not | what is the reason why the coffee made by yourself is not good?
Professional coffee knowledge exchange more coffee bean information please follow the coffee workshop (Wechat official account cafe_style) | Water quality is right, water quality is also a very important factor in coffee extraction, after all, 98% of the coffee is water! So please don't ignore such an important thing! When the TDs value of the water is too high, the minerals in the water are supersaturated.
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Do you know how to produce more oil in espresso? will the flavor of coffee without oil be weak?
Professional coffee knowledge exchange more coffee bean information Please pay attention to the coffee workshop (Wechat official account cafe_style) Coffee extraction in the real sense, is a necessary factor that determines the flavor and taste of a cup of coffee. The quality of extraction is also a direct standard that directly defines the quality of a coffee. At present, there are two kinds of coffee in the world that need to be extracted. One is espresso, that is, us.
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