Introduction to coffee theory, let's start our coffee trip.
"how about a cup of coffee?" it's really nice to hear that. A sentence that is easy to ask, unburdened and comfortable. Coffee is one of the good drinks that people like. But the symbolism, value and influence of coffee are far different from those of other drinks. A delicious cup of coffee is like a good book and a movie with rich plot. Coffee is made up of 99% water and 1% solid, but that 1% is the product of a variety of long journeys. At this moment, people in the world are also enjoying this beautiful coffee. Let's start our coffee journey "from a seed to a cup of coffee".
The area between the center of the equator and latitude 25 degrees north and south is called the coffee area. Coffee is produced in more than 90 countries in the region. Annual output of 100 million bags (each bag of 60kg) each bag can make 10, 000 cups of coffee. From cultivation to production, almost all are done by manual work. As the second largest trading product in the world after oil, coffee has created a lot of jobs in various fields of production, processing and trade.
Half of the coffee trees are planted at an altitude of 6 to 1800 meters, and its value increases with the increase in altitude. Coffee trees are like cherry trees in our country. Their fruits are called "cherries" but are bigger than cherries. Like picking tea, coffee farmers select each fruit one by one, and the daily harvest is usually only 20 to 30kg.
The subtropical areas of coffee producing areas are generally muggy, but coffee is generally cultivated in high mountains, so the average temperature generally does not exceed 25 degrees. Large temperature difference, rich precipitation, strong sunshine, fertile volcanic soil, slight fog, natural sea breeze and so on are the necessary conditions for coffee growth. However, frost and cold snap can bring fatal blow to coffee trees.
Morning coffee cherry Shanghai with a little dew, shining in the sun like a sparkling pearl. On a hot summer day, a cup of coffee is as refreshing as a shining diamond.
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Do you know what is barista milk?
Do you know? The fat content of whole milk is not 100%, 50%, or even 20%. In fact, full-time milk contains only 3.5% fat. The reason it is called full fat is that the milk is purer. As the California Dairy Commission describes whole milk: whole milk is unprocessed, freshly squeezed milk. But this sentence does not.
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Extraction time of coffee brewing coffee flavor extraction curve
This is the curve of substances appearing in coffee extraction. In the extraction of coffee, both good taste and bad taste will be dissolved. As can be seen from the diagram, the rate of dissolution of good taste is relatively fast, so it relatively suppresses the production of bad taste. So the first half of coffee presents mainly good taste, and in the second half, when the good taste is almost dissolved, no.
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