Many owners of automatic coffee machines mistakenly believe that the device is designed exclusively for working with whole grains. However, using ground coffee in a coffee machine DeLonghi - this is not only a possible, but often a necessary operating scenario. This need arises when you want to prepare a drink from specific varieties, decaffeinated grains, or simply when the supply of fresh grain in the bunker has run out.
The key element that allows this process to be realized is a special bypass channel, often called a bypass. It is through this that the ground powder goes directly into the brewing unit, bypassing the built-in coffee grinder. Proper Use This mechanism requires compliance with a strict sequence of actions, otherwise the equipment may break down or prepare a low-quality drink.
Unlike the grain version, here you have complete control over the grinding fraction, since you are buying a ready-made product. However, this imposes additional dosage requirements. If you add too much powder, the machine will not be able to compress it well, and the water will pass through the “tablet” too quickly, making the drink watery. If you pour too little, the pressure in the system will drop and extraction will be weak.
Preparation of equipment and selection of raw materials
Before you start cooking, you need to make sure that your model DeLonghi Supports bypass function. Most series are equipped with this, including Magnifica, Dinamica and PrimaDonna. First, make sure the machine is warmed up and ready to go. The water tank should contain fresh liquid, preferably filtered, since hard water quickly forms scale on the thermoblock.
Particular attention should be paid to the coffee itself. For automatic machines, even when using the ground version, the correct fraction is critical. Grinding that is too fine and resembles dust can clog the mesh of the brewing unit. Too large, similar to sea salt, will not provide the required resistance to water. Optimal size particles should correspond to classic espresso grinding.
It is also important to check that the bypass compartment is clean. There should be no caked residues from previous brews. The presence of old coffee can negatively affect the taste of the new drink and even cause the mechanism to jam. Wipe the hole with a dry soft cloth or a special brush, if included.
Use only freshly ground coffee or an airtight store-bought product. Coffee that has been left in an open pack for a long time will lose its aromatic oils and will give a flat, sour taste, regardless of the quality of the machine.
Bypass technology for loading ground coffee
The process of activating the bypass channel on coffee machines DeLonghi standardized, but has its own nuances. Typically the bypass cap is located on the top of the housing, next to or directly above the bean hopper. It is often marked with a spoon icon. Open this lid before turning on the machine or in standby mode but before starting a cooking cycle.
Next you need to measure the amount of coffee. The machine often comes with a measuring spoon, but it is better to use a kitchen scale for accuracy. The standard dose for one cup of espresso is 7-9 grams, for a double cup - 14-18 grams. Critical do not exceed the maximum mark if it is indicated next to the hole, or do not fill the channel “with a slide”.
After adding coffee, you do not need to compact it manually, as in a carob coffee maker. car DeLonghi will do it herself using the built-in press. However, you should carefully distribute the powder along the bottom of the channel so that it does not spill onto the body of the device. Close the bypass cover until it clicks. The machine is now ready for use.
☑️ Coffee loading algorithm
There is a common misconception that you can add coffee immediately after opening the lid while the machine is humming. You shouldn't do this. The bypass status polling mechanism is triggered at a certain point in the preparation cycle. If the lid is not closed at the right time, the machine will ignore the presence of ground coffee and try to grind the beans from the main hopper.
Setting extraction and strength parameters
When the bypass is activated, control of the drink strength changes from the grind setting to the powder dosage and menu settings. On display DeLonghi you can adjust the water volume and temperature. Since ground coffee already has a fixed particle size, you can change the contact time of water with the product only by varying the volume of the spill or the amount of powder added.
If your drink turns out too weak despite the correct dosage, try reducing the volume of water in the program settings. Extract concentration directly depends on the ratio of the mass of coffee and the volume of water. Ground coffee often requires slightly less water than freshly ground coffee, since older beans release flavor less readily.
Temperature also plays a role. If you are using a light roast, it makes sense to set the maximum temperature in the menu Settings → Coffee temperature. Dark roasts, on the other hand, can become bitter at high temperatures, so they are best brewed on medium or low heat. Experiment with these settings, recording your results, to find the perfect balance.
Table of correspondence of dosages and settings
To simplify the process of selecting ideal parameters, you can use a reference table. It will help you navigate the initial settings for different types of ground coffee. Remember that taste preferences are subjective and the table is only a starting point to calibrate your DeLonghi.
| Drink type | Dosage (grams) | Water volume (ml) | Recommended temperature |
|---|---|---|---|
| Espresso (standard) | 7-9 g | 30-40 ml | Average |
| Doppio (double) | 14-18 g | 60-80 ml | Medium/High |
| Lungo | 9-10 g | 100-120 ml | High |
| Decaf (light roast) | 10-12 g | 40-50 ml | High |
Using this data, you can quickly adapt the recipe to a specific pack of coffee. Note that decaffeinated coffee often requires a larger dosage as the decaffeination process makes the bean looser and less rich in flavor.
Typical errors and ways to resolve them
Making coffee via bypass often comes with specific problems. One of the most common is the message that “waste compartment is full” appears immediately after cooking. This happens if the machine did not have time to reset the previous washer or if you closed the bypass cover too late. In this case, the cycle may be interrupted.
⚠️ Attention: Never open the bypass lid while the machine is running or when the cooking indicator lights up. If ground coffee gets into the drive mechanism, it can cause serious damage requiring service.
Another problem is “liquid” coffee with large empty foam. This is a sure sign that the grind is too coarse or the coffee is old. In the case of a bypass, the grinding cannot be corrected, so the only solution is to increase the dose of powder or change the grade. Also check if the mesh of the brewing unit is clogged. It must be washed regularly under warm water without detergents.
What to do if the coffee flows in a stream?
If the coffee flows out too quickly and looks like dirty water, then the water is not meeting resistance. Try adding another 1-2 grams of ground coffee in the next cycle. If this does not help, perhaps water got into the bypass due to the lid not being closed tightly last time, and a “plug” of soaked coffee has formed. The canal will need to be cleaned.
If the machine makes an uncharacteristically loud noise when pumping water through the bypass, this may indicate that the system is congested. Try running water through the cappuccino maker (without steam) several times to remove any air pockets. Stable pressure - the key to proper extraction.
Bypass compartment care and hygiene
Hygiene in the ground coffee compartment is the key to the absence of mold and foreign odors. After each use, it is recommended to wipe the area around the hole with a dry cloth. Wet coffee residue is an ideal breeding ground for bacteria. Once a week, do a more thorough cleaning using a brush.
Don't forget that the brewing unit itself also needs care, especially if you often use ground coffee. Oils from ground coffee can settle on the walls of the unit faster than when using beans, since the contact area of the substance with the mechanism at the time of loading is higher. Remove the unit regularly and wash it with warm water.
⚠️ Attention: Do not use a vacuum cleaner to clean the bypass compartment! Static electricity can damage electronic sensors located near the opening, and strong air flow will drive dust deeper into the machine's mechanism.
For deep cleaning, you can use special tablets for decalcification and removal of oils. Run the cleaning cycle according to the instructions DeLonghi, after making sure that the bypass compartment is dry and closed. This will help remove scale and coffee deposits from the inner tubes that may have formed when using fine dust from ground coffee.
Regular dry cleaning of the bypass compartment after each use will prolong the life of the machine and ensure the purity of the taste of each cup, preventing the mixing of different flavors.
Benefits of using ground coffee in a machine
Why even use ground coffee in an automatic machine if it can grind itself? The answer lies in diversity. Automatic coffee grinders DeLonghi have a limited range of adjustment. If you want to prepare a drink from a very coarse grind (for example, for some types of Americano) or, conversely, from a specific fine grind that the machine cannot reproduce, bypass is the only option.
In addition, this is a salvation for lovers of decaffeinated coffee. Changing the grain in the bin every time you want a decaf cup is inconvenient and expensive. Adding one spoonful of ground decaf through the bypass takes just one minute. This allows you to enjoy different tastes without compromise.
The bypass is also indispensable if the coffee grinder fails. The machine can continue to operate in the “ground coffee” mode while you wait for repairs or the purchase of new equipment. Thus, functionality The device is maintained even if the components are partially broken.
Is it possible to use ground coffee all the time without using beans?
Yes, coffee machines DeLonghi designed for continuous operation with ground coffee via bypass. However, it is worth considering that in this mode you take on the function of a coffee grinder. You will have to independently monitor the freshness of the grind and its fraction. The machine will work properly if you maintain the dosage and cleanliness of the compartment.
Why does the machine say “add beans” when I use the bypass?
This message appears if the main bean hopper is empty. Even when using bypass, many models DeLonghi require the presence of grain in the main compartment to lubricate the millstones or simply as a starting condition. Pour a small amount of any grain into the main hopper, even if you plan to brew only through the bypass.
Does using a bypass affect the warranty?
No, using the bypass function is the standard operating mode provided by the manufacturer. This is not considered a violation of the operating conditions. The warranty remains valid as long as you have not damaged the machine mechanically (for example, by adding foreign objects) and have carried out regular cleaning.
Which grind is best to buy for DeLonghi?
Grinding “for espresso” is considered optimal. It is fine enough to create resistance to water, but not as dusty as Turkish coffee. Avoid mixtures with flavors (cherry, chocolate, etc.) as chemical oils can damage the rubber seals and lubricants inside the machine.