How to tell the difference between all those types of coffee out there!! If you don't know, you're not the only one. Here is a brief description of some of the most popular. Filtered Coffee : also known as drip brew, is coffee prepared by letting hot water drip into a paper or permanent filter, filled with ground coffee. As the water passes through the coffee, it absorbs all of the oils and essences of the coffee, and according to Douwe Egberts (world renowned coffee experts), filtered coffee is still the BEST way to enjoy all of what coffee has to offer. Espresso : very strong coffee with bold aroma, obtained by forcing nearly ...