Can black coffee predict the weather? The role of coffee
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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Do coffee beans divide their parents? Why do coffee beans have male beans?
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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Foreign cafe culture Foreign cafes are often called Café
Foreign cafes are often called Caf, small Caf only a coffee machine, with some snacks and simple sandwiches. The large Caf is comparable to the Restaurant, offering a variety of meals and drinks. Unlike domestic cafes, foreign cafes open at 7 a.m. or even earlier. This may also have something to do with living habits. Westerners start their day with a cup of coffee. drink
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