Can black coffee predict the weather?
Suddenly it began to rain, and you ran to the door of a cafe to take shelter from the rain. Now there are only two ways in front of you, either run to the nearby bus stop immediately while the rain is not heavy, or go into the cafe and quietly order a cup of coffee until the sky clears up. OK, order a cup of coffee, throw in a cube of sugar, and observe the bubbles released by the dissolution of the cube sugar without stirring. If the bubbles gather in the center, the pressure is very high and the weather will clear up soon. The attachment of bubbles around the cup indicates that the air pressure is very low, either heavy rain or snow. The surface tension formed by the oil of coffee beans is the key factor to determine the position of bubbles. So instant coffee doesn't have this effect. "A cup of coffee knows the weather."
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Basic knowledge of Coffee Coffee beans are divided into male and female
If you are interested in Baidu, you will see some articles describing the separation of male and female coffee beans, and mention that the flavor of male beans is better than that of mother beans. In fact, as a hermaphroditic, self-pollinating plant, there is no distinction between male and female in the seeds of coffee trees. In a normal fresh coffee fruit, the spherical coffee seed is composed of two coffee beans together, the plane is relatively inward, and the arc is outward.
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Detailed explanation of fine coffee learning coffee divination
Coffee divination, also known as "Greek coffee divination" or "Turkish coffee divination", is also popular in countries once ruled by the Ottoman Turkish empire. Before the origin of coffee divination, there were many disputes between Turkey and Greece, so if you come to Greece, don't say you want a cup of Turkish coffee, otherwise you will get two white eyes.
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