How to Clean a DeLonghi EC155 Espresso Machine

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Make sure to clean your espresso machine.
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For espresso lovers, the process of brewing your own cup of espresso can be almost as exciting and fulfilling as drinking the final product. When all is said and done, though, getting ready to clean DeLonghi Espresso Maker parts can be tedious at best. The cleaning process is worth it, though, to experience quality homemade espresso.

Clean Delonghi Espresso Maker Parts

According to the DeLonghi Espresso Maker manual, you should clean DeLonghi Espresso Maker filters after about every 200 espressos or when the espresso drips out of the filter holder. You should definitely clean it if you find the DeLonghi Espresso Machine pump not working. To clean DeLonghi Espresso Maker filter parts, you first need to remove the filter from the filter holder. You should never put the filter in the dishwasher; instead, you need to hand clean the inside of the filter holder.

Remove the filter cap by unscrewing in the direction the arrow points on the cap. Then remove the filter from the container by pushing it from the cap end. Next, you can remove the gasket and rinse all of the parts.

Make sure that you clean the metal filter with hot water and a brush until all of the holes are clear. After you clean DeLonghi Espresso Maker filter parts, replace the filter and gasket on the plastic disk. Then replace the assembly in the steel filter container and screw back on the cap.

Cleaning the Boiler Outlet

After about every 300 espressos, you need to clean DeLonghi Espresso Maker boiler outlet parts. It's vital that you only clean the boiler outlet parts when the espresso maker is not hot. Also, you should always unplug the machine. According to the DeLonghi Espresso Maker manual, you need to unscrew the screw that connects the espresso boiler outlet filter.

Once unscrewed, you can clean the outlet filter with hot water and a brush until the holes are unblocked. Another vital tip when you clean DeLonghi Espresso Maker boiler outlet parts is that you should never immerse the machine in water.

Descale the Machine

According to the DeLonghi Espresso Maker manual, you should also descale the machine after every 200 espressos. When descaling the machine, it is recommended that you use a commercial descaling solution, but if you are out, you can use citric acid. To clean with citric acid, such as vinegar, you need to fill the tank with 17 ounces of water. Next, dissolve two spoonfuls, or an ounce of vinegar into the water, rotate the selector knob to the "appliance on light" position (which is represented by a crooked line symbol) and wait until the OK indicator light comes on.

After the light comes on, make sure that the filter holder is not attached and put a container underneath the boiler outlet. You need to then rotate the selector knob to the coffee/hot water deliver position and deliver half of the solution to the tank. As soon as half of the solution is delivered, interrupt the flow by rotating the selector to the "O" position. Let the solution sit for 15 minutes, then add the rest of the solution to the tank.

You must clean the vinegar off the DeLonghi Espresso Machine tank to get rid of the solution and scale. To do this, you'll need to rinse the tank, fill it with clean water and replace it to its regular position. Then you'll rotate the knob to the coffee/hot water delivering position and add clean water into the tank once more. After you do this, you can rotate the selector knob to the "appliance on light" position.

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Allanah Dykes is a freelance writer and her work has been featured on Elite Daily, Levo League, Popsugar, Complex, Gurl, The Kitchn, HelloGiggles, Revelist, and Food 52.

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