The change of temperature
The higher the external temperature, the finer the coffee beans are ground; otherwise, the coffee beans are ground coarsely. Generally speaking, the environment for coffee production is 18 to 23 degrees.
The change of humidity
The higher the humidity, the thicker the coffee beans are ground. Compared with temperature and humidity, coffee production is mainly affected by ambient temperature.
Water quality requirements
Generally speaking, 70ppm (the proportion of minerals in water) is soft water below, and hard water above 70ppm. The higher the mineral content in the water, the more miscellaneous the coffee will produce, so it is recommended to use the water quality from 60ppm to 140ppm to ensure the mellow aroma of the coffee.
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