The appearance of bitterness in espresso and a decrease in pressure during spillage often indicate that the brewing unit of your Saeco covered with a layer of polymerized coffee oils. These sticky deposits accumulate on metal screens, pistons and internal passages of the hydraulic system, disrupting normal water circulation and changing the taste profile of the drink. Ignoring this problem will result in the machine becoming overloaded and the quality of the coffee dropping with each cup.
Regular cleaning of your saeco coffee machine from coffee oils is a mandatory maintenance procedure and cannot be replaced by simply rinsing with water. Unlike scale, which is formed from hardness salts, oily deposits are organic in nature and require the use of specialized degreasers or mechanical action. The correct approach to removing these contaminants will extend the life of the seals and maintain brewing temperature stability.
Causes and signs of hydraulic system contamination
The main reason for the formation of persistent soot is the brewing process itself, in which hot water under high pressure extracts not only aromatic substances, but also fats from ground grains. When cooled, these fats oxidize and turn into a viscous substance that firmly adheres to surfaces. In coffee machines Saeco with an automatic brewing device, this process occurs inside a closed unit, which makes it difficult to visually monitor the condition of the parts without disassembling.
The first symptoms indicating the need for urgent cleaning are changes in the operation of the device that cannot be ignored. The owner may notice that the coffee stream becomes sluggish, intermittent, or changes in color to a darker, almost black color, even when using a light roast. Another characteristic sign is the appearance of an unpleasant rancid odor from the used coffee tablet or from the device itself after the cycle is completed.
- 🔴 Coffee flows in a thin stream or drips, although the degree of grinding has not changed.
- 🟠 The drink has a pronounced bitterness or taste of old oil.
- 🔵 The brewing unit is removed with effort or creaking.
- 🟢 A dark, sticky coating is visible on the inner walls of the brewing chamber.
It is important to understand that conventional descalers are not able to dissolve coffee oils, since they have different chemical compositions and principles of action. Using citric acid or vinegar to remove grease will not work, and in some cases may even preserve the deposits. To effectively combat organic contaminants, alkaline solutions or special tablets for decalcification and cleaning of brewing systems are required.
Preparing for the cleaning procedure and choosing products
Before starting active actions to remove contaminants, it is necessary to properly prepare the workplace and select one that is safe for plastic and rubber. Saeco chemistry. The market offers many specialized cleaners, but it is important to choose those that are certified by the manufacturer or have a similar composition that does not contain aggressive chlorine-containing components. An incorrectly selected product can cause corrosion of metal parts or softening of rubber seals.
The preparation process also includes providing access to hot water and having a container to collect waste liquid. It is recommended to carry out the procedure in a well-ventilated area, as some cleaning compounds may have a specific odor. Prepare a soft brush with non-metallic bristles in advance to avoid scratching the Teflon coating of the brewing unit.
Particular attention should be paid to the temperature of the water used to dissolve the cleaning agent. Water that is too hot can cause a violent chemical reaction, while water that is cold will not activate the purifier's components properly. The optimal solution is to use water at a temperature of 40-50 degrees Celsius, which ensures maximum efficiency of the active substances.
Use only warm water to dissolve the tablets to avoid sudden foaming and overflow of the solution over the edge of the container.
Mechanical cleaning of the brewing unit
The most effective method for removing old coffee oils is comprehensive mechanical cleaning of the brewing unit, which requires removing it from the coffee machine body. To do this, open the service door, press the latches and carefully pull the unit towards you, being careful not to spill any remaining coffee gruel. Before starting disassembly, it is recommended to visually assess the condition of the external walls and remove visible dirt with a dry cloth.
Disassembly of the infuser must be carried out strictly in accordance with the instructions for your model Saeco, since the design of the clamps may differ. Usually it is necessary to remove the top cover of the unit, release the spring mechanism and remove the filters. All removable parts should be soaked in a warm cleaning solution for the time specified by the chemical manufacturer, usually 15 to 30 minutes.
☑️ Procedure for mechanical cleaning
After soaking, rinse all parts thoroughly under running water using a soft sponge or brush. Pay special attention to the metal mesh and channels through which the coffee passes, as this is where oil plugs most often form. Do not use metal brushes or knives, as damaging the surface will cause carbon deposits to accumulate even faster in the future.
⚠️ Attention: It is strictly forbidden to wash the brewing unit in the dishwasher or use aggressive abrasive agents to clean it, which can damage the Teflon coating.
Chemical decalcification and system flushing
After mechanical cleaning of the external components, it is necessary to chemically flush the internal channels of the coffee machine to remove residual oils from the hydraulic system. To do this, the prepared cleaning solution is poured into the water tank, and the machine is switched to rinsing mode or making coffee without a cup. The circulating liquid dissolves deposits in the boiler, pipes and valves, removing them out through the dispenser.
The washing process should be repeated several times, alternating the supply of solution with the supply of clean water, in order to completely wash away the remaining chemicals and dissolved dirt. Some models Saeco There is an automatic cleaning program that can be activated through the settings menu. If there is no such function, the procedure is carried out manually, driving through the system a volume of water equal to approximately half the volume of the tank.
The effectiveness of chemical cleaning directly depends on the concentration of the solution and the time of its contact with contaminated surfaces. A solution that is too weak will not be able to break down dense oil plugs, and an overly concentrated solution may leave an unpleasant aftertaste in the coffee. Compliance with the proportions indicated on the packaging of the cleaning product is the key to a successful result.
Cleaning Product Compatibility Chart
Means|Type|For brewing unit|For hydraulic system
Puly Caff Tablets|Foam|Yes|No
Liquid Decalcifier|Acidic|No|Yes
Durgol tablets|Complex|Yes|Yes
Citric acid|Folk|No|With caution
Cleaning the cappuccino maker and steam wand
The steam wand and cappuccino maker are where coffee oils mix with milk protein, creating extremely stubborn and difficult-to-remove stains. As this mixture dries, it turns into a hard crust, which blocks the steam holes and interferes with the froth of the milk. Regular cleaning of these units is necessary to maintain the hygiene of the prepared drinks.
To clean removable cappuccino makers, they should be dismantled and soaked in warm soapy water or a special milk system cleaner. Fixed tubes require steam purging immediately after use and periodic rinsing with water and cleaning agent. The internal channels can be cleaned using the brush included with the coffee machine.
- 🥛 Remove the removable parts of the cappuccino maker and rinse them under warm water.
- 🚿 Blow through the steam wand for 5-10 seconds before and after each use.
- 🧼 Once a week, soak the parts in a solution to remove milk stone.
- 🔍 Check the nozzle holes for blockages and clean them with a thin needle.
Particular attention should be paid to the silicone tubes inside the cappuccino maker, since fat and bacteria can also settle on their walls. If the tubes become cloudy or hard, it is recommended to replace them with new ones, since the quality of the material deteriorates over time. Regular care of the milk nodes prevents the appearance of unpleasant odors and guarantees the perfect cappuccino texture.
Comparison of cleaning methods and prevention
To choose the best way to care for your coffee machine, it is useful to compare different cleaning methods based on their effectiveness and labor intensity. Mechanical cleaning gives the best visual result, but requires time and disassembly skills. Chemical washing is less labor-intensive, but may not cope with severe old stains without prior preparation.
The table below compares the main methods for removing coffee oils to help you create the best maintenance schedule for your coffee. Saeco. Combining these methods allows you to achieve the best result and avoid costly repairs in the future.
| Cleaning method | Efficiency | Labor intensity | Frequency of application |
|---|---|---|---|
| Daily rinsing | Low | Minimum | Daily |
| Chemical tablet | Average | Low | Once every 2-3 months |
| Mechanical cleaning of the block | High | High | Once every 6 months |
| Professional maintenance | Maximum | Missing | Once every 1-2 years |
Preventing the formation of soot involves not only regular cleaning, but also the correct selection of coffee beans. Excessively oily dark-roasted beans contribute to faster contamination of the millstones and brewing unit. Using medium roast beans and storing them properly will help reduce the rate at which deposits form.
Regular cleaning of the Saeco coffee machine from coffee oils extends the service life of the device by 30-40% and guarantees a stable coffee taste.
Frequently asked questions (FAQ)
How often should the brewing unit be completely cleaned of oils?
Full mechanical cleaning with disassembly is recommended every 3-6 months, depending on the intensity of use of the coffee machine. If you prepare more than 10 cups per day, it is better to reduce the interval to 2-3 months. Chemical cleaning with tablets should be carried out as soon as signs of contamination appear or as recommended by the indicator on the panel.
Can citric acid be used to remove coffee oils?
No, citric acid is intended to remove mineral deposits (scale) and is not effective against organic fats. To break down coffee oils, alkaline media or special surfactants contained in professional cleaners are required. Using acid for degreasing will not work and may damage rubber seals in high concentrations.
What should you do if there is a chemical taste left in your coffee after cleaning?
It is necessary to additionally flush the system with clean water. Run 2-3 full tanks of water through the coffee machine in the coffee mode without adding beans. This will help completely flush out any remaining cleaning agent from the internal channels and boiler. If the taste persists, check to see if there is any remaining product in the drip tray or cappuccino maker.
Is it harmful to frequently disassemble the brewing unit for cleaning?
If disassembled carefully according to the instructions, the damage is minimal, but excessive zeal can lead to wear of the plastic latches and guides. It is recommended not to disassemble the unit unless necessary more than once a month. For everyday maintenance, it is enough to remove the unit and wash it with water without completely disassembling it into its component parts.