The preference of many people is to grind as well as brew their own whole bean coffees. The best choice among coffee grinders, in regards to preserving the coffee beans’ flavors and aromas, is a conical burr grinder. The worst type of grinder to use is a blade grinder because they generate too much heat and can actually re-roast the coffee beans. Only grind what you are going to use at the time because once the coffee has been ground it will lose its fine flavors and aromas very rapidly. The most important point is to use the correct grind for your coffee maker. Avoid using too fine of a grind because it can break up the coffee bean fibers to much as it can cause the aromatic oils of the coffee to be over-exposed to oxygen and result in a distinct bitterness. Too coarse of a Grind will result in underextracted coffee, as the water will pass through too quickly. The most common coffee methods for filtering brewed coffee is using filter paper through a metal screen filter or even a cloth filter may also be used.