Brewing Nespresso drinks couldn't be easier. Insert the capsule, choose your drink size, and let the machine do the rest. But to really understand your Nespresso machine and how it works, you need to dig deep. Read on as we explore what's going on under the slick exterior. Each Nespresso Original espresso machine has a unique design and configuration, but for the most part, they all work the same way. With this range of Nespresso espresso machines, you can insert a compatible capsule and turn off the machine. The pod was stabbed 3 times at the top. When you choose a drink size, the machine pumps the correct amount of water from the tank into the capsule. Heated water is pumped into the capsule under high pressure until the capsule's broad foil covering bursts, releasing a rich, creamy espresso. The filter inside the capsule ensures that no coffee grounds get into your coffee cup. As if using these single-serve brewers wasn't easy enough, cleanup is even easier. When you turn on any Nespresso machine to insert new capsules, the machine automatically ejects the used capsules into the built-in bin. It may seem impossible, but Nespresso has managed to make their new VertuoLine Nespresso coffee machines easier to use. With these Nespresso machines, you don't even have to press a button to choose the size of your drink. Instead, each Vertuo capsule has a barcode. When you insert the capsule and turn off the machine, it reads this barcode and the brewer automatically optimizes the brewing parameters for that particular coffee. I'm not saying it just adjusts the amount of water for a specific amount of drink. It also changes the brew temperature and flow rate, which experts believe should vary from roast to roast. Vertuo's extraction process is also very different from the original Nespresso Line's pressure-based system, which is immediately clear from the different pod shapes. While Original Line Nespresso capsules resemble small cups, Vertuo Nespresso capsules are dome-shaped. During the brewing process, this range of Nespresso branded coffee machines injects hot water into the flat top of the coffee pod. The pods are then rotated at 7000 rpm to thoroughly infuse the water and ground coffee beans. It then flows out through a series of perforations around the edge of the capsule by centrifugal force.