FAQ, tips & instructions for the perfect coffee
Fully automatic coffee machine Finessa Black Star | B03904 from KOENIG:
The compact and energy-efficient Fully automatic coffee machine Finessa in black. Small Format with largest Coffee enjoyment ! Always fresh ground and brewed coffee.
Technical data:
- Ready for use in max. 25 seconds; < 72 dBA thanks to noise-optimized conical grinder
- Patented, compact and removable brewing unit with pre-brewing function
- Simple and intuitive operation. Espresso (strong), café crème (mild), and practical hot water function.
- Programmable from 25 ml to 250 ml
- Display of all service functions
- 3 different modes, with ECO function and automatic shutdown
- The only fully automatic coffee machine with re-pressing of ground coffee
- Energy classification: A+
- Tip: To descale your coffee machine, we recommend Calco Clean
- Power 1235-1470 W
- Dimensions - Product size: Length 180mm / Height 315mm / Depth 395mm
Product description
The KOENIG BlackStar impresses with its clean lines, powerful functionality, and barista-like feel at the touch of a button. It's ideal for espresso and lungo, with a programmable water volume, touchscreen control panel, and high-quality stainless steel conical grinder—all packed into a slim 18 cm housing.
Frequently Asked Questions (FAQ)
☕ Operation & Personalization
What drinks can I prepare?
Espresso, Café Lungo and hot water – selectable directly via touch button.
How do I set my preferred drink quantity?
Hold the button down until the desired amount has been dispensed. Then press again to save.
Can I adjust the grind size?
Yes, but only during the grinding process —do not turn it when the machine is stationary. The optimal grinding level is set at the factory.
🧼 Cleaning & Maintenance
What should I clean daily?
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Drip tray & grid: wipe with a damp cloth
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Pomace and residual water containers: empty, clean, dry thoroughly
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Brewing unit: rinse briefly
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Housing: clean with a soft cloth (never hold under water!)
How often should I descale?
Every 4–6 weeks, depending on water hardness. Use only Calco Clean (Art. A11458) – no vinegar!
How do I degrease the brewing unit?
With Clean Coffee Tablet (Item No. A11491), monthly or after 30 cups. Cleans oily residues and protects the spout from clogging.
⚠️ Common problems & solutions
No coffee despite starting?
➡️ Check: Is the water tank inserted correctly? Is there air in the system? Try dispensing hot water.
Pump loud, but no water?
➡️ Insert the tank completely, dry it and descale it separately if necessary.
Grounds container full even though emptied?
➡️ Only insert when the symbol flashes – and only when the machine is switched on.
Coffee tastes different than usual?
➡️ Readjust the grind (while grinding!), check the bean quality, degrease the brewing unit.
🧠 Professional tips for the best coffee enjoyment
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Bean recommendation:
👉 Special roasts for tower coffee – perfectly matched to KOENIG fully automatic coffee machines. Medium roasts with 100% Arabica or Robusta for short extraction times and full aroma. -
Smartly extend cup volume:
It's better to prepare large coffees as an Americano (espresso + hot water). A pure lungo with more water often results in a bitter or flat finish. -
Use the grind correctly:
Too coarse = watery. Too fine = bitter. Adjust only one setting and test – never while the grinder is stationary. -
Cleaning is quality:
The cleaner the machine, the better the aroma. And the longer it lasts.
📞 Service
Support contact:
📞 +41 41 766 72 10
📍 TAVORA Brands AG, Tramweg 35, 6414 Oberarth
🌐 www.tavora.ch
Documents for customers available for the Finessa Silver B03904 fully automatic coffee machine from KOENIG:
The coffee lounge
Gift ideas - Coffee enjoyment - Recipes - Tips:
Here you will find additional information about the coffee world
Click here to go directly to B03904 in the shop Kitchen-More.ch
For your concerns, you'll always have a direct line to your contact person, who will personally discuss your needs with you. Daniel Gwerder, Chief Digital Officer, is available for personal support. +41 79 638 45 16