A sharp decrease in steam pressure, the appearance of extraneous noise when the pump is working or the characteristic crackling when heating water are the first and most reliable signs that hydraulics Your device is overgrown with limestone deposits. If you ignore these symptoms and do not carry out timely decalcificationThe hardness salts completely block the passage channels, which will lead to critical overheating. heating-piece (TENA) or a boiler. As a result, the coffee machine may go into error with the requirement of maintenance or, worse, require expensive replacement of the burned thermoblock.
Timely washing allows not only to restore factory productivity, but also to significantly extend the service life of expensive household appliances. Water, passing through the system, leaves on the walls of the pipes and internal surfaces of the boiler a layer of calcium carbonate, which with each cycle becomes thicker and harder. Scale. It has excellent thermal insulation properties, so the TENG begins to work with increased load, trying to heat the water through this barrier. That is why the question of how to clean the coffee machine from scale becomes relevant immediately after the first signs of contamination.
Causes of scale formation and its impact on technology
The main reason for the appearance of deposits is the hardness of tap water saturated with calcium and magnesium salts. When heated, these salts precipitate and crillize on hot surfaces, creating a dense scale-layer. The overgrowth rate of the system depends on the chemical composition of the water in your area and the frequency of use of the device. The higher the heating temperature and the more often the machine is turned on, the faster the process occurs. calcination internal nodes.
The effect of scale on the operation of the coffee machine is destructive, affecting both mechanical and electrical components. ThermoblockThe coated lime gives the water less heat, which leads to an increase in the time of preparation of the drink and an increase in energy consumption. In carob coffee makers suffers the permeability of the steam tap, which makes it impossible to quality whip milk for cappuccino or latte.
In addition, particles of detached scale can get into the custard block, clogging small holes in the cook-module Or the duces of the water distributor. This results in an uneven water spill through the coffee tablet, which negatively affects the taste of espresso. In automatic models, solid deposits can jam valves or damage seals, causing leaks.
⚠️ Attention: Ignoring the need for cleaning can lead to irreversible damage to the heating element. If you notice that the car is warming longer than usual, this is a sure signal to act immediately.
Review of effective means for sediment removal
When deciding what to clean the coffee machine from scale, users often choose between specialized chemistry and proven folk methods. Professional decalcination They are developed taking into account the materials used in coffee machines (plastic, aluminum, stainless steel), and contain corrosion inhibitors. They act gently but effectively dissolving carbonate compounds without damaging seals and gaskets.
Citric acid is a popular alternative to expensive remedies and is often used for cleaning. steam-generators and boilers. It is a weak organic acid solution that copes well with loose deposits. However, for older, fossilized scale layers, the concentration should be higher, which poses a risk of damage to aluminum alloys in some models of the technique.
Specialized tablets or powders in sachets have a dosage formula that excludes the risk of overdose of the active substance. Unlike liquids, they do not contain excess impurities and flavors that can affect the taste of the future. coffee. Many manufacturers of equipment recommend using the original tools to maintain the warranty on the device.
- 🍋 Citric acid: Affordable and safe means that effectively removes fresh deposits and does not leave odor.
- 🧪 Specialized liquids: contain additives to protect metal and rubber, ideal for complex systems with boilers.
- 🍶 Acetic acid: powerful tool that requires extremely careful use due to aggressiveness and a sharp smell.
- 💊 Decalcination pills: convenient form of release with a precisely calculated dosage for one cleaning cycle.
It is important to understand that aggressive acids, such as salt or concentrated acetic, can destroy rubber seals and silicone tube inside the car. The use of inappropriate chemicals often causes leaks that are difficult to eliminate without disassembling the body. Therefore, the choice of the product should be based not only on the price, but also on compatibility with the materials of your coffee machine.
Folk methods: citric acid and vinegar
Citric acid is considered one of the safest “folk” means, allowing to wash the system qualitatively without the risk of damage to components. To prepare the solution, it is necessary to dissolve 20-30 grams of powder in a liter of warm water, thoroughly mixing until the crystals disappear completely. The resulting liquid is poured into a water tank and the process of warming up or spilling is started, simulating the preparation of coffee, but without the use of coffee beans.
Acetic acid has a higher activity and is able to dissolve even old-fashioned calcium-crustHowever, it requires strict proportions. Table vinegar (9%) is usually used, diluted with water in a ratio of 1: 3 or 1: 4, so as not to damage the internal parts. After the procedure, repeated washing with clean water is required, since the residues of vinegar can give the drink an unpleasant taste and smell.
Many users combine these methods, starting with a gentler citric acid and switching to vinegar only in case of severe contamination. A chemical reaction can cause metal corrosion and fistulas.
⚠️ Warning: Never use pure vinegar without dilution, as this can lead to the destruction of rubber seals and the appearance of a persistent unpleasant odor in the system.
The cleaning process with folk remedies takes more time, as it requires careful rinsing of the system. After running the acid solution, it is necessary to drive a full tank of clean water through the machine 2-3 times to ensure that the residues of the reagent are removed. Only after that, you can brew the first trial coffee, making sure that there are no foreign flavors.
The dangers of using aggressive chemistry
Some “home craftsmen” try to use means to clean plumbing or tile. Doing this is strictly forbidden! They can contain chlorine, surfactants and other components, the vapors of which are toxic when heated, and the residues are not washed out completely and can cause poisoning when ingested.
Professional chemistry: advantages and features
Specialized scale removal products, such as Durgol, Filtero or original liquids from coffee machine manufacturers, are designed with the specifics of the coffee equipment. Their formula is selected so as to affect calcium carbonate as effectively as possible, without affecting other metals and alloys. Corrosion inhibitorsThe oxidants that are part of the composition create a protective film on metal surfaces, preventing oxidation.
The main advantage of professional chemistry is the predictability of the result and safety for all nodes of the device. Manufacturers are testing their liquids for compatibility with polymersilicone and various metals used in hydraulics. This eliminates the risk of swelling of the gaskets or the appearance of microcracks in the tubes, which often happens when aggressive acids are used.
In addition, many modern coffee machines have a built-in decalcination program that is optimized for working with liquids of a certain viscosity and chemical composition. Using the manufacturer’s recommended product allows the self-cleaning system to work most efficiently by washing out dissolved salts through drainage.
- 🛡️ Protection of materials: safe for aluminum, brass, plastic and rubber seals.
- ⏱️ Speed of action: work faster than folk remedies, reducing the downtime of equipment.
- 🚫 No odor: They do not leave any foreign flavors that affect the taste of coffee.
- ✅ Preservation of the guarantee: The use of original chemistry is often a condition of service.
The cost of professional funds is higher than the price of citric acid, but this expense is fully justified by extending the life of expensive equipment. Regular use of high-quality decalcinerators allows you to maintain heat-exchange at an optimal level and avoid expensive repair of heating elements.
Expert advice: If you use bottled or filtered water of low hardness, the frequency of decalcification can be reduced, but you can not completely abandon it. Even in soft water, deposits form over time.
Step-by-step instructions for cleaning the coffee machine
The cleaning process begins with the preparation of the solution according to the instructions on the packaging of the chosen product or recipe if you use citric acid. The liquid is poured into the water tank, after which it is necessary to remove the brewing block (if the design allows) and rinse it under running water. This will prevent the cleaning agent from getting on the coffee oils, which can oxidize and spoil the taste.
Next, you should activate the decalcination mode through the device menu or start the process of warming up and spilling manually, if there is no such function. The solution must go through the whole hydraulics, including boiler, brewing unit and steam crane. It is important to pass through the machine the entire volume of prepared liquid, without interrupting the process halfway.
After the cycle with the cleaning solution is completed, the system must be thoroughly washed with clean water. To do this, the tank is filled several times and driven through the machine until the signs of acid or a specific smell completely disappear. Only after that, you can return the brewing block to the place and make a test run.
☑️ Checklist before cleaning start
Particular attention should be paid to cleaning the steam faucet if it is used to whip milk. Through it, you also need to pass steam and a little water with solution to remove milk fat and scale from the node. After all procedures are completed, it is recommended to wipe the external parts of the machine with a wet cloth and dry the available elements.
| Cleaning phase | Action. | Important nuances |
|---|---|---|
| Preparation | Preparation of solution | Use warm water for better dissolution |
| Main cycle | Driving fluid through the system | Make sure the tank is not completely empty (do not allow suffocation) |
| Washing | Repeated clean water run-off | Minimum 2 full tanks for removing acid residues |
| Finish | Assembly and test | Checking the tightness and quality of steam |
Prevention and frequency of service
The regularity of the decalcination procedure directly depends on the hardness of the water and the intensity of operation of the coffee machine. In regions with very hard water, it is recommended to clean every 2-3 months with daily use. If the water is soft or a filter jug is used, the interval can be increased to 4-6 months, but at least once every six months.
Modern models are often equipped with a clean-up indicator that lights up after a certain number of cups are cooked. However, relying on electronics alone is not worth it, as sensors can become contaminated. Visual control of the vapor status and the cup filling rate remains the most reliable indicator.
The use of water filters installed in the tank can significantly reduce the rate of scale formation. Such cartridges soften water by replacing calcium ions with sodium ions, which makes the formation process carbonate less intense. Timely replacement of the filter is the best prevention of breakages of heating elements.
⚠️ Please do not wait until the car has completely stopped supplying water. Preventive cleaning is always cheaper and easier than repairing or replacing a burned-out heater or boiler.
Proper care of the coffee machine includes not only the removal of scale, but also the regular cleaning of the brewing block from coffee oils. A comprehensive approach to service ensures that your espresso It will always have a rich taste and the right cream, and the technique will last for many years without serious breakdowns.
The main conclusion: Regular decalcination is not a whim, but a necessity to maintain the operability of heating elements and stable pressure in the system.
Questions and Answers (FAQ)
Can I use ordinary citric acid instead of special products?
Yes, you can. A solution of 20-30 grams of citric acid per 1 liter of water effectively removes scale. The main thing is to thoroughly rinse the system with clean water after the procedure to remove the acid residue.
How often should you clean the coffee machine from scale?
The frequency depends on the hardness of the water and the frequency of use. On average, it is recommended to carry out the procedure every 2-4 months. When using filtered water, the interval can be increased.
Is vinegar harmful to the coffee machine?
Acetic acid is more aggressive than citric acid and can damage rubber seals and aluminum parts when used frequently or in high concentrations. It is better to use special means or citric acid.
What to do if the coffee has a strange taste after cleaning?
This means that the system is not well rinsed. It is necessary to drive through the coffee machine another 1-2 full tanks of clean water until the taste completely disappears.
Do I need to remove the block during decalcification?
Yes, the brewing block is better to remove and wash separately under the tap. This will prevent the cleaning solution from getting onto the coffee oils and will allow the module to be cleaned mechanically.