Decalcifying your espresso machine is a simple process that is vital to maintain the life of your machine and enhance the flavor of your brew. Everyday use causes harmful minerals to build up inside your espresso machine. These minerals can alter the taste of your espresso as well as harm the overall health of your machine. Mineral buildup can clog the machine's water lines and valves, restricting water flow.

When To Decalcify

When to decalcify your Krups espresso machine depends on your water hardness. Hard water is the main cause of mineral build up. The harder the water, the more chemicals are found in it. Checking your water hardness level will determine how often to decalcify your machine. Purchase a water testing kit at a home improvement store or from online vendors. Most kits are very simple to use; however, home hard water testing kits can be expensive and the results may not be accurate. So, if you don't want to bother with a test, the general rule of thumb is to decalcify every two months to combat mineral buildup in your Krups.

How To Decalcify

Before beginning the cleaning process, make sure your Krups espresso machine is turned off and unplugged. This will reduce the risk of injury to yourself. Also, allow the machine enough time to cool down before you decalcify it. While your machine is turned off and unplugged, wipe down the exterior of the machine using a cloth dampened with warm water and a little mild dishwashing detergent. Once you are finished cleaning the outside of the espresso machine, remove the water reservoir and fill it with fresh warm water. Add a packet of the decalcifying cleaner that your owner's manual recommends and stir until it is completely dissolved. Once the cleaner is dissolved, replace the water reservoir and set a container under the steam wand. Select the hot water setting on the machine and turn it on. Open the steam valve to allow the de-calcifying liquid to drain out into the container. When the machine has run its course, discard the "dirty" water that collected in the container below the steam wand. Rinse the water reservoir completely and re-fill it with fresh water. Run the clean water through the steam valve again until the reservoir is empty.

Source:

BeverageFactory.com: How To Decalcify Your Espresso Maker

WholeLatteLove.com: Decalcify Home Espresso Machines

DurgolSwissEspresso.com: Decalcification Of Quality Espresso Machines