The trick to brewing a great cup of coffee is to use cold water in the coffee maker. The coffee maker will then heat the water to about 200 degrees Fahrenheit right before filtering it through the ground coffee beans. For the best tasting coffee, always ground the coffee beans right before putting them into the coffee maker. Coffee grounds will last for about two weeks if placed in an airtight container and stored in the refrigerator. After that, the beans are bad and should be discarded.
Forbes magazine recommends that coffee drinkers never brew less than half a pot of coffee because the quality of the coffee will be negatively affected. For example, never make less than six cups of coffee in a 12-cup coffee maker. People looking for smaller amounts of coffee should use a smaller coffee maker.