Most people who are dependent on caffeine have breakfast with an old friend -- the coffee maker! Every morning you scoop in the coffee, add the water and turn it on, but have you ever wondered what is happening inside? How does the water get from the little compartment where you pour it in to the top of the coffee maker, and what is that gurgling sound?

In this edition of HowStuffWorks we will look inside a typical drip coffee maker so you can understand exactly what is happening when you make coffee. We will also look at the possible problems that might cause your coffee maker to stop working. By the end of this article, you may look at your old friend in a completely new way!