How to Descale Smeg Coffee Maker – 3 Types of Smeg Descaler

How to descale Smeg Coffee Maker

Every time you need a delicious cup of coffee, your Smeg drip filter or espresso machine is there to provide it. But to keep your machine running smoothly and making the best coffee possible, it’s important to perform regular maintenance, Descale Smeg Coffee Maker.

Over time, mineral deposits and limescale can build up in the heating element, pipes, and brewing mechanism of your coffee maker. If left unchecked, these deposits can damage your machine, reduce its efficiency, and affect the flavor of your coffee. Descaling helps to remove these buildups, restoring your machine to peak performance and ensuring a consistently great brew.

In this article, we’ll walk you through the step-by-step process of descaling your SMEG coffee maker. We’ll also provide tips on how to choose the right descaling solution and how to descale your machine on a regular basis.

How to Know if  Your Smeg Coffee Machine Requires Descaling

If you notice any of below mentioned signs, it’s a good idea to descale your Smeg coffee maker as soon as possible. Descaling is a simple process that can be done in a few steps using a descaling solution that is specifically designed for coffee makers. These signals could be like;

  • If your coffee maker takes longer than usual to brew a pot of coffee, it could be a sign of mineral buildup inside the machine. Descaling can help remove these deposits and restore the brewing speed.
  • If you notice a decrease in the water flow during brewing, or if the coffee drips slowly, it may be due to mineral clogging. Descaling can clear the blockages and improve water flow.
  • Over time, mineral deposits can affect the taste of your coffee, making it taste bitter or off. Descaling helps remove these deposits, allowing you to enjoy a fresh and flavorful cup of coffee.
  • Additionally, If your coffee maker is making more noise than usual, it may be due to a buildup of mineral deposits.
  • If you observe any visible scale buildup or discoloration on the heating elements, water reservoir, or other parts of the coffee maker, it’s a clear indication that descaling is needed.

For the Smeg Drip Filter Coffee Machine, a blinking orange light below the digital clock indicates the need for descaling. In the case of Smeg Espresso Machine, a blinking orange steam button icon serves as a reminder to perform descaling.

Types of Smeg Coffee Machine Descaler

Descalers come in various forms to address limescale and mineral buildup in coffee machines. Here are three main types of descaler options: Smeg descaler, generic descaler, and homemade descaler.

Smeg Descaling Solution (De’longhi Eco Decalk Mini) Buy on Amazon

Smeg descaler, currently supplied as “De’longhi Eco Decalk Mini” is the safest and most effective way to descale your Smeg coffee machine. This specialized descaler is formulated to target and eliminate mineral deposits without causing any harm to your Smeg coffee machine. It is the product recommended by Smeg and is designed to maintain the integrity of your appliance.

Generic Descaler

Generic descaler is a general-purpose descaling solution that can be used on a variety of appliances, including coffee machines. It is typically less expensive than Smeg-specific descaling products, but it is important to choose one that is safe for use on Smeg coffee machines.

How to Descale Smeg Coffee Maker

When choosing a generic descaler, there are a few things to keep in mind:

  • Make sure that the descaler is specifically formulated for use on coffee machines.
  • Avoid descalers that are too acidic, as they can damage your coffee machine.
  • Look for a descaler that is biodegradable and environmentally friendly.

Recommended Descalers for Smeg Coffee Machines

There are several trusted descaling solutions available in market for Smeg coffee machines. The following are some recommended descaling solutions for Smeg coffee machines;

Descaler NameDescription
IMPRESA Coffee Machine DescalerMade in the USA – Universal Descaling Solution for Keurig, Nespresso, De’longhi and All Single Use Coffee and Espresso Machines
Essential Values Universal DescalerMulti Purpose cleaner for your Keurig, Nespresso machine, Cuisinart coffee maker, Ninja coffee maker, Smeg espresso maker, Breville espresso machine, Bunn coffee maker and more.
Durgol Swiss Espresso Universal DescalerDurgol is the descaler that removes 100% of the limescale and will NOT leave any calcium citrate or calcium lactate build-up behind. Your machine is basically returned to “factory new”.
Dezcal Descaling Powder SolutionUniversally compatible descaler – formula is more effective at removing limescale than vinegar, works faster than vinegar, and is odorless
Cafiza Espresso Cleaning TabletsMade in the USA Since 1936 – Cleaning Tablets effectively eliminate coffee residue and oils from espresso machine group heads, valves, and lines.

Homemade Descalers For Smeg Coffee Makers

For those who prefer a DIY approach, homemade descalers offer a cost-effective alternative to commercial descaling products. However, it’s important to understand the components and potential effects of these mixtures. Here are some homemade descaler options, each with its own set of advantages and considerations:

Vinegar-Water Descaler

Vinegar is one of the most effective homemade descalers for Smeg coffee machines. It is a natural acid that can dissolve mineral deposits without damaging the machine. However, it is important to use vinegar carefully, as too much can damage the rubber seals and gaskets in your machine.

To descale your Smeg coffee machine using vinegar, follow these steps:

  • Always Use 5% acidity white vinegar. Stronger vinegar can damage your machine.
  • Mix equal parts white vinegar and water in the water reservoir. You can also use a ratio of 1 cup vinegar to 2 cups water, but be careful not to use too much vinegar.
  • Run a descaling cycle or brew cycle with the vinegar solution. Most Smeg coffee machines have a descaling cycle, but if yours doesn’t, simply run a regular brew cycle with the vinegar solution.
  • Allow the descaling solution to sit in the machine for 30 minutes. This will give the vinegar time to dissolve any mineral deposits.
  • Run the descaling cycle or brew cycle again with fresh water. This will help to flush out any remaining vinegar and mineral deposits.
  • Rinse the machine thoroughly with fresh water. Run several cycles of fresh water through the machine until you can no longer smell vinegar.
• Cost-effective and readily available.• Vinegar can be corrosive,  Too much vinegar can damage the rubber seals and gaskets in your machine if used frequently.
• Effectively dissolves limescale and mineral deposits.• The lingering scent of vinegar may affect the taste and aroma of the coffee if not rinsed thoroughly.

Baking Soda-Water Descaler

Baking soda is another homemade descaler that can be effective in cleaning your Smeg coffee machine in most cases. It can effectively remove mineral buildup from your coffee maker, but it is important to use it carefully as too much baking soda can clog the machine and damage the internal components.

To descale your Smeg coffee machine with baking soda, follow these steps:

  • Mix baking soda and water in a bowl until the baking soda is dissolved. Use approximately 1-2 tablespoons of baking soda per cup of water.
  • Apply baking soda paste in your Smeg coffee machine.
  • Allow the baking soda solution to sit in the machine for 15-30 minutes.
  • Run the descaling cycle or brew cycle with fresh water. This will help to flush out any remaining baking soda solution and mineral deposits.
  • Rinse the machine thoroughly with fresh water. Run several cycles of fresh water through the machine until you can no longer taste baking soda.
• Baking soda is less corrosive than vinegar and can be gentler on certain components.• The efficacy may vary depending on the severity of limescale buildup.
• Effective in removing limescale.• Some coffee machine manufacturers recommend against using baking soda, so check your machine’s manual for guidance.
• Helps neutralize any acidic residues from previous descaling with vinegar.• It may not be as potent as commercial descaling agents for heavy buildup.

Moreover, Citric acid and lemon juice can also be used to create homemade descaling solutions. However, store-bought descaling solutions are generally more effective and recommended, as they are specifically formulated to remove mineral deposits from coffee machines without damaging them.

How to Descale Smeg Coffee Maker

The frequency with which you need to descale your Smeg coffee machine will depend on the hardness of your water. If you have hard water, you will need to descale your machine more often. A good rule of thumb is to descale your machine every 2-3 months, or more often if you use it frequently. Here is a simple and easy step by step method;

How to descale Smeg Drip Coffee Maker
  • First of all check out there should be no coffee grounds in the filter after that place a container with a capacity of at least 1.4L under the coffee outlet.
  • Fill the water tank with fresh water, filling it up to the ‘Max’ mark.
  • Add the recommended amount of Smeg descaler solution to the water in the tank. Usually instructions are written at the back side of descaling bottle or box.
  • Press and hold the lungo button and the middle button simultaneously for 3 seconds.
  • During the descaling process, the lungo button will start flashing orange, and the descaling indicator light will be illuminated.
  • The descaling process is complete when the lungo button and descaling indicator turn white.
  • Rinse the coffee maker twice using fresh water only, with no descaler solution.
  • Thoroughly clean the carafe after the descaling process.

Clean External parts of Your Smeg Coffee Maker

While the descaling cycle is operating, take the time to clean the water tank, drip tray, and other detachable components of your Smeg coffee maker. Wash them with warm water and mild dish soap, and be sure to rinse them thoroughly with clean water to remove any soap residue.

If you are using a homemade descaler such as vinegar, you can soak the external parts in a solution of equal parts vinegar and water for 30 minutes before rinsing them with clean water. This will help to remove any stubborn dirt and grime. Gently dry the external parts with a soft microfiber cloth to avoid scratching the surfaces.

How to Reset Smeg Coffee Machine After Descaling

It is important to reset the descaling mode after descaling your Smeg coffee machine to ensure that the machine is ready to be used for brewing coffee again. If the descaling mode is not reset, the machine may not function properly. Once the descaling procedure and rinsing are finished, reset or disable the descaling mode on your Smeg coffee maker.

To reset or deactivate descaling mode on a Smeg coffee machine, follow these steps:

  • Turn off the coffee machine and unplug it from the power outlet.
  • Empty the water tank and drip tray.
  • Press and hold the descaling button for 5 seconds. The descaling mode will be reset or deactivated.
  • Plug the coffee machine back into the power outlet and turn it on.

By applying above descaling process, you can effectively maintain and prolong the performance of your Smeg coffee machines, including Smeg Drip Filter Coffee Machines, Smeg Capsule/Pod Coffee Machines, Smeg espresso machines, and Smeg Combi Coffee Machines. Regardless of the specific model, the descaling instructions generally follow a similar method.


Regular descaling is essential for maintaining the optimal performance and lifespan of your Smeg coffee machine. By following the simple steps outlined in this article, you can easily and effectively remove mineral deposits and scale buildup using a homemade or commercial descaling solution.

After descaling, be sure to thoroughly rinse the machine with fresh water to remove any residual descaler solution. By incorporating descaling into your regular coffee maker maintenance routine, you can enjoy consistently delicious coffee and extend the peak efficiency of your machine for years to come.

Which is better vinegar or descaling solution?

Descaling solutions are generally better than vinegar for descaling coffee machines. They are specifically formulated to remove mineral deposits and scale buildup without damaging the machine. Vinegar, on the other hand, is a natural acid that can be corrosive to certain materials, such as rubber seals and gaskets.

Why is the red light flashing on my Smeg coffee machine?

Smeg coffee machines have a descaling indicator light that will flash when the machine needs to be descaled. The water tank could be empty. Make sure that the water tank is filled with fresh, cold water. Check the drip tray if it’s full. Empty the drip tray and rinse it out with warm water. May your machine is overheating. If the machine is overheating, it will automatically shut off. Allow the machine to cool down for 30 minutes before trying to use it again.

Is it OK to descale espresso machine with vinegar?

It is not recommended to descale an espresso machine with vinegar. Vinegar is a natural acid that can be corrosive to certain materials, such as rubber seals and gaskets. It can also leave a lingering smell in the machine, which can affect the taste of your coffee.
If you do choose to descale your espresso machine with vinegar, be sure to use a small amount and rinse the machine thoroughly with fresh water afterwards. It is also important to note that some espresso machine manufacturers do not recommend using vinegar to descale their machines.
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