Run the coffee machine and let the vinegar and hot water do the cleaning. The hot water and acids in the vinegar will sure break down or remove stains and mineral buildups in the pot that may cause clogging in your coffee maker. 3. Take out the coffee filter and rinse it well. If yours is a mesh filter, you will see a whole bunch of dirt coming from the machine. Types of Single Cup Coffee Maker Conventional coffee machine This type uses standard ground coffee through a normal filter system. It brews a single cup of coffee at a time. Units included in this type are pretty much standard and there s really nothing jaw-dropping about them. Single serve pod system This coffee maker is used by most offices these days since it doesn t make much of a mess. The brewing of this sleek-looking machine happens in a steel brew cylinder that sits above a piston that is rising and falling. During the brewing time it moves up and down as the coffee grounds are pushed up and coffee is being sent out through the drain valve. Brewing with clover coffee makers take only 30 - 40 seconds. Coffee businesses are understandably thriving because what they particularly market is the taste and quality of the beverage they sell. What most people do not get is the passion of coffee connoisseurs for the taste, aroma, and creaminess of the drink. While caffeine kick is the most popular and obvious reason for the coffee maker sales, coffee intricacies are catching up and becoming the next reason. The Krups XP2070 may be a sophisticated machine compare to other coffee makers but it is pretty traditional when it comes to brewing espresso, cappuccinos, lattes and other specialty coffees. It also comes with programmable clock/timer, flavor selector, and alarm system. The unit has a porta filter and three individual filter sieves for 1-cup, 2-cup or pod espresso preparation. If this factor matters most to you, it is therefore important that you know the qualities of different coffee machines so you would know which to pick one. Here are some of the coffee makers you can find in the market: There is the pump espresso coffee machine. This is the traditional coffee maker, which has a pump that is used to pressure hot water so that the coffee is directly ground into the coffee cup.