Mistakes in the use of coffee machines:
The advantage of the American coffee machine is that it is convenient to cook a large pot at a time, but its disadvantage is that the heat preservation time is too long, usually more than 30 minutes later, the coffee will begin to turn sour and bitter, and the best coffee will not withstand a long time of heat preservation.
2. Many friends in hot water flush about ten seconds off, in fact, this time the coffee has not yet beeped to the next pot, should wait for 20 seconds, extend the hot water in the coffee powder stay time, so that coffee can be more concentrated.
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