CoffeeThe NCA suggests and we agree that you should purchase coffee as soon after it has been roasted as possible. Fresh roasted coffee is essential to a superb cup of coffee. And purchase your coffee in small amounts—only as much as you can use in a given period of time. Ideally you should purchase your coffee fresh every 1-2 weeks.
GrindIf you purchase whole bean coffee, always grind your beans as close to the brew time as possible preferably utilizing a burr or mill grinder. Grind for the type of brewing method you intend on using. It makes a difference. Specific methods need to have specific grinds, so keep this in mind
The water you use is VERY important to the quality of your coffee. Use filtered or bottled water if your tap water is not good If you are using tap water let it run a few seconds before filling your coffee pot. Be sure to use cold water. Do not use distilled or softened water.
Ratio of Coffee to WaterA general guideline is 1 to 2 tablespoons of ground coffee for every six ounces of water.
Temperature During BrewingYour brewer should maintain a water temperature between 195 - 205 degrees Fahrenheit for optimal extraction.
Brewing TimeIn a drip system, the contact time should be approximately 5 minutes.
Tea or Coffee Press pot, the contact time should be 2-4 minutes.
Espresso the coffee is in contact with the water for only 20-30 seconds.
Brewed coffee should be enjoyed immediately!Pour it into a warmed mug or coffee cup so that it will maintain its temperature as long as possible. Brewed coffee begins to lose its optimal taste moments after brewing so only brew as much coffee as will be consumed immediately. If it will be a few minutes before it will be served, the temperature should be maintained at 180 - 185 degrees Fahrenheit. It should never be left on an electric burner for longer than 15 minutes because it will begin to develop a burned taste. If the coffee is not to be served immediately after brewing, it should be poured into a warmed, insulated thermos and used within the next 45 minutes.
Here's one that we know is a common practice
Never reheat your coffee.