A coffee machine is not just a kitchen gadget, but the real “heart” of the morning ritual for millions of people. But even the most expensive model from De’Longhi, Saeco or Bosch Over time, it begins to work worse: the water flows in a thin stream, the coffee is bitter, and the indicators signal errors. The culprit of 90% of these problems is scale, which accumulates in heating elements, tubes and reservoirs. It cannot be ignored: according to statistics from service centers, up to 60% of coffee machine breakdowns are associated with scale build-up on internal parts, and repairs cost 30–70% of the cost of new equipment.

In this article we will look at how to choose the right one descaler for coffee machines, which remedies really work, and which only mask the problem. You will learn why ordinary vinegar or citric acid can harm expensive equipment, how often to clean it, and what to do if the coffee machine is already “choking” from plaque. And also - step by step instructions for horn, capsule and automatic models, so that you do not damage the device at the first stage.

Why scale is dangerous for coffee machines: the consequences of ignoring the problem

Scale is not just a white coating on the walls of the kettle. In coffee machines, it is formed from calcium and magnesium salts contained in water and settles on heating elements, valves, pipes and even in the brewing group. Why are these deposits dangerous?

  • 🔥 Overheating and breakdown of the heating element: a layer of scale only 1–2 mm thick increases energy consumption by 20–30% and reduces the service life of the heater by 2–3 times.
  • ☕ Deterioration of coffee taste: Scale changes the pH of the water, causing the drink to taste bitter or metallic.
  • ⚠️ System clogged: in automatic coffee machines, scale blocks the valves, and the machine begins to “spit” water or refuses to make coffee at all.
  • 💸 Expensive repairs: replacing the heating element in Jura E8 or Miele CM 6360 costs 8–15 thousand rubles, and cleaning will cost 10 times less.

Coffee machine manufacturers (e.g. Philips or Krups) are directly indicated in the instructions: warranty is canceled, if the breakdown occurred due to scale. And in service centers they say that 7 out of 10 devices received for repairs have an error code E05 (overheating) or E18 (water blockage), they suffer precisely from overgrowing of internal parts.

⚠️ Attention: If your coffee machine starts making unusual sounds (hissing, gurgling) or the water flows intermittently, this is a sign of a critical blockage. In that case do not use aggressive means (vinegar, hydrochloric acid): these can destroy seals and cause leaks.

Types of descaling cleaners: what to choose for your coffee machine

There are three types of descaling products on the market, and each has pros and cons. Let's figure out which one is suitable for your equipment.

Cleaner type Composition Pros Cons Suitable for
Professional liquids Citric/lactic acid + surfactant + corrosion inhibitors Quickly dissolves scale, safe for rubber and plastic Expensive (300–800 rubles per bottle) All types of coffee machines (automatic, carob, capsule)
Powders and tablets Citric acid (90–99%) + flavorings Cheap (RUB 50–150), easy to dose May leave residue, not suitable for heavy soiling Carob and capsule coffee machines
Natural remedies Vinegar, soda, lemon juice Always at hand, environmentally friendly Corrodes seals, leaves an odor, is ineffective For emergency cleaning only (once every 6 months)

Professional products (eg Durgol Swiss Espresso, Puly Caff or Melitta Entkalker) contain a balanced composition that not only removes scale, but also protects metal parts from corrosion. But vinegar and citric acid in their pure form can damage gaskets and hoses - especially in automatic coffee machines with a One-Touch (as in Saeco Xelsis or Jura Z10).

📊 What descaler do you use?
Professional (Durgol, Puly, etc.)
Citric acid/tablets
Vinegar or soda
I don't use anything

Top 5 descaling cleaners: 2026 ranking

We analyzed user reviews, tests from independent laboratories (including Stiftung Warentest) and recommendations from service centers to rank the most effective products. Selection criterion: speed of action, safety for equipment and absence of residual taste.

  1. Durgol Swiss Espresso (Switzerland)

    Market leader, recommended by manufacturers Jura and Miele. Dissolves scale in 20–30 minutes and does not require rinsing. Suitable for all types of coffee machines, including professional ones (for example, La Marzocco). Price: ~600 rub. for 250 ml (enough for 4-5 cleanings).

  2. Puly Caff (Italy)

    Specialized product for espresso machines. Contains lactic acid, which gently cleans the brass parts of the brewing group. Ideal for Rancilio Silvia or Lelit Anna. Price: ~500 rub. for 200 ml.

  3. Melitta Entkalker (Germany)

    Budget option with good efficiency. Suitable for capsule coffee machines (Nespresso, Tassimo). Leaves no aftertaste, but lasts longer (40–50 minutes). Price: ~300 rub. for 250 ml.

  4. Urgasa Descaler (Spain)

    Concentrated product (1:10 with water). Economical: a 1 liter bottle is enough for 20 cleanings. Recommended for commercial coffee machines in a cafe. Price: ~1200 rub. for 1 l.

  5. Top House (Germany)

    Universal cleaner for coffee machines and kettles. Contains citric and succinic acids. Suitable for home machines (Philips HD8867, De’Longhi Magnifica). Price: ~250 rub. for 250 ml.

If your coffee machine is under warranty, be sure to check the instructions: some brands (eg Bosch) require to use only branded products (for example, Bosch Tkz 6003), otherwise the warranty will be void.

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Before purchasing a cleaner, check whether it is compatible with the material of your coffee machine. For example, for devices with aluminum boiler (as in some models Gaggia) you cannot use products based on hydrochloric acid - only citric or lactic acid.

Step-by-step instructions: how to descale your coffee machine

The cleaning process depends on the type of coffee machine. Below - universal instructions for automatic, carob and capsule models. Important: Before starting, study the manual of your device - some brands (for example, Nespresso) have unique decalcification programs.

1. Automatic coffee machines (Jura, Saeco, Philips)

Fill the tank with water to the maximum level|

Add cleaner in the proportion indicated on the package|

Place a container with a volume of at least 1 liter under the drain spout |

Disable auto-off feature (if equipped)|

Make sure there are no beans in the hopper (for models with burrs) -->

Cleaning steps:

  1. Turn on the decalcification mode (usually this is the button CALC or combination Menu → Settings → Descale).
  2. Wait until the coffee machine passes half the solution through the system, then turn it off for 15–20 minutes (this is necessary to dissolve the scale).
  3. Turn on the device again and wait until the cycle ends. Repeat rinsing with clean water 2-3 times.

Features for models with milk line (for example, De’Longhi PrimaDonna): After cleaning, be sure to rinse the milk supply system separately, otherwise the remaining product may curdle the protein.

2. Carob coffee machines (Rancilio, Gaggia, Lelit)

This is where it needs to be cleaned boiler and brewing group. Algorithm:

  1. Prepare a solution (for example, 100 ml Puly Caff per 500 ml of water).
  2. Pour it into the tank and turn on the machine in hot water mode (without coffee). Run the solution until clean water comes out.
  3. Remove the brew group diffuser and clean it separately with a brush.

3. Capsule coffee machines (Nespresso, Tassimo, Dolce Gusto)

These models It is forbidden to use aggressive means - only specialized ones (for example, Nespresso Descaling Kit). Process:

  1. Pour the solution into the reservoir.
  2. Start cleaning mode (for Nespresso - hold the buttons Lungo + Espresso 3 seconds).
  3. Once completed, flush the system 2-3 times with clean water.
⚠️ Attention: In coffee machines Dolce Gusto Do not use products with abrasive particles (for example, soda) - this will damage the capsule piercing needle.
What should I do if the coffee machine does not start the cleaning mode?

If the machine does not respond to the descaling command, check:

1. Correct proportions of the solution (too concentrated can block the sensors).

2. Presence of air in the system (try blowing out the water supply pipe).

3. Filter condition (in some models, for example Miele CM 6310, a clogged filter blocks the start of cleaning).

If the problem persists, contact service: the water hardness sensor may be faulty.

Common cleaning mistakes: what ruins coffee machines

Even experienced users sometimes make mistakes that lead to breakdowns. Here top 5 most dangerous:

  • 🚫 Using vinegar in automatic coffee machines: It corrodes rubber gaskets and leaves a persistent odor. B Jura E6 or Saeco PicoBaristo this may cause the milk line to leak.
  • 🚫 Interrupting the cleaning cycle: If you turn off the machine before the rinse is finished, the remaining product will crystallize inside and clog the valves.
  • 🚫 Cleaning without first removing coffee oils: in carob machines, scale mixes with old coffee deposits, forming a dense crust that even professional products cannot remove.
  • 🚫 Using the product for dummies: They often contain chlorine or fragrances that spoil the taste of coffee for months.
  • 🚫 Ignoring water hardness: If the water in your region is very hard (more than 8°dH), you need to clean your car every 1-2 months, and not every six months.

Service engineers say that coffee machines most often come to them after being “cleaned” with vinegar or Cillit Bang. In the first case, you have to change all the seals (cost - from 3 thousand rubles), in the second - flush the system at least 10 timesto remove the chemical taste.

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If your coffee machine starts leaking or making unusual noises after cleaning, turn it off immediately and flush the system with clean water 3-4 times. If the problem persists, do not turn on the device until a service visit!

How often should you descale your coffee machine?

Cleaning frequency depends on water hardness and intensity of use apparatus. General recommendations:

Coffee machine type Water hardness Intensity of use Recommended Cleaning Frequency
Automatic (Jura, Saeco) Soft (up to 4°dH) 1–3 cups/day Once every 3–4 months
Automatic Medium (4–8°dH) 4–6 cups/day Once every 1–2 months
Automatic Hard (more than 8°dH) More than 6 cups/day Once every 3–4 weeks
Rozhkova (Rancilio, Gaggia) Any Any Once every 2–3 months + weekly cleaning of the group
Capsule (Nespresso, Dolce Gusto) Any 1–2 cups/day Once every 6 months or when the indicator signal

How to determine water hardness? Use test strips (cost ~200 rubles for 50 pieces) or check the data on the website of your water utility. For example, in Moscow water hardness ranges from 4 to 7°dH, and in St. Petersburg - from 2 to 4°dH.

If your coffee machine is equipped water filtration system (for example, Brita or Claris in models Jura), you can clean it less often - once every 4-6 months. But the filter needs to be changed every 2 months, otherwise it itself will become a source of bacteria.

Alternative methods: when professional remedies are not available

If you don't have a specialized cleaner on hand, you can use safe analogues, but with reservations:

  • 🍋 Citric acid: 20–30 g per 1 liter of water. Suitable for carob and capsule machines, but not for machines with aluminum parts. After cleaning, flush the system 5–6 times.
  • 🥛 Lactic acid: A milder alternative to lemon. Proportion - 50 g per 1 liter. Does not leave any aftertaste, but acts more slowly (1–1.5 hours).
  • 💧 Distilled water: if you mix it with regular one in a 1:1 ratio, it will reduce hardness and slow down the formation of scale. But this not a replacement for cleaning!

What not to do under any circumstances:

  • 🚫Use Coca-Cola or Sprite: Sugar and dyes will clog the system.
  • 🚫 Clean with soda: it scratches the metal and leaves a residue.
  • 🚫 Pour undiluted vinegar: this will lead to corrosion and leakage.

If you do decide to use citric acid, monitor the temperature: when heated above 60°C, it loses effectiveness. Optimal mode - 50–55°C.

FAQ: answers to frequently asked questions

Can teapot cleaner be used in a coffee machine?

No, absolutely not. Products for dummies (for example, Topperr 3031 or Sano Antinakipin) contain aggressive acids (hydrochloric, sulfamic), which destroy rubber seals and aluminum parts of coffee machines. Additionally, they often have a strong chemical odor that will linger in the coffee for several weeks.

How do you know if your coffee machine needs cleaning?

Signs of critical pollution:

  • Water flows in a thin stream or intermittently.
  • The coffee machine makes a loud hissing or gurgling sound.
  • The drink has become bitter or has a metallic taste.
  • The indicator on the panel is lit DESCALE or CLEAN.
  • The coffee preparation time has increased by 1.5–2 times.

If you notice at least one of these symptoms, it’s time to clean!

How much does professional cleaning cost?

The cost depends on the type of coffee machine and the degree of contamination:

  • Capsule (Nespresso, Dolce Gusto): 1500–2500 rub.
  • Carob (Gaggia, Rancilio): 2000–3500 rub. (including group cleaning).
  • Automatic (Jura, Saeco): 3000–5000 rub. (may require disassembly).

The price usually includes diagnostics, but not always the replacement of seals or heating elements (if they are damaged by scale).

Is it possible to clean a coffee machine without special products?

Yes, but only as a last resort and with caution. Suitable options:

  • Citric acid (only for carob and capsule machines, once every 6 months).
  • Lactic acid (more gentle option, but lasts longer).
  • Distilled water (for intermediate washing, but not for full cleaning).
Prohibited use vinegar, soda, household chemicals (Cillit, Domestos) or carbonated drinks.
What should I do if the coffee machine does not work after cleaning?

Possible causes and solutions:

  • Clogged valves: Flush the system with clean water 5-6 times. If it doesn’t help, disassemble and clean with a needle (only for experienced users!).
  • Damage to seals: if you used vinegar or an aggressive agent, you will have to replace the gaskets (cost - from 500 rubles).
  • Sensor error: reset the settings to factory settings (instructions in the manual) or contact service.
  • Remaining funds in the system: Run the rinse cycle (if available) or manually run the water until the odor disappears.

If the coffee machine does not turn on at all, do not try to repair it yourself: it may be a short circuit due to liquid getting on the board.