A new experience for coffee lovers at Diplomat Hotel Prague
At Diplomat Hotel Prague, you can now enjoy 3666 by Jiří Langmajer – a specialty coffee brand with its own story, distinctive character and carefully refined flavour, developed over a long period of time.
Another step in our commitment to quality – not only in the big things, but also in the everyday details that shape our guests’ experience.
2 years
of development
of the brand and flavour
dozens
of samples
tasted during development
3/6/1966
3666
Jiří’s date of birth, which inspired the brand name
100%
Arabica
specialty coffee

Two coffees, two distinct flavour profiles
Not everyone looks for the same thing in a cup of coffee. That is why we selected two 3666 varieties, each with its own character.
Arabica Blend Arabica Blend is the smoother, more balanced choice, with gentle fruit notes and a chocolate base.
Peru is fuller and more intense, with very mild acidity and a more pronounced flavour profile.
Taste 3666 at Diplomat Hotel Prague
Choose your favourite cup in the Lobby Bar or book a table at Bistro Grill Diplomat.
Lobby Bar: +420 296 559 138


Langmajer and 3666. Coffee exactly the way he wanted it.
From the beginning, Jiří Langmajer did not want to simply lend his name to an existing product. He was looking for a flavour he would genuinely want to come back to every day.
Developing the brand took two years, with dozens of samples and repeated tastings before the right flavour was found.
The name is no coincidence either. It refers to Jiří’s date of birth – 3 June 1966. That is how 3666 was born: a coffee created to match his own taste.
Arabica Blend. A classic that never gets boring.
Arabica Blend was the very first 3666 coffee. Its flavour did not come together overnight – Jiří Langmajer spent months refining it until he found exactly the combination he was looking for.
Mexican Chiapas brings fruity sweetness and floral aromas, Brazilian Cerrado adds fuller body and chocolate notes, while selected Colombian coffee brings everything together into a balanced whole.
The result is a 100% Arabica coffee you can enjoy every day.


Peru. A special edition for his 60th birthday.
Peru was created as a special edition to celebrate Jiří Langmajer’s 60th birthday, bringing a different flavour direction to the 3666 collection.
For this anniversary edition, the choice fell on Peru and the La Merced area of Chanchamayo, where coffee is grown at altitudes between 1,200 and 1,900 metres.
In the cup, you will find an intense cocoa flavour, caramel aroma and a delicate nutty finish. Its full body is balanced by only very mild acidity.
3666, your way
You can enjoy 3666 in a classic cup or in a refreshing variation:
- Espresso
- Cappuccino
- Latte
- Espresso Tonic
- Iced Coffee - Classic, Vanilla, Caramel or Coconut
- Or, if you feel like something different - Matcha Latte - hot or iced


Whether you are heading to a business meeting, stopping by for coffee during the day or ending the evening with a cup after dinner, you can choose between two distinct flavour profiles.
Two coffees. Two distinct characters. Another reason to choose Diplomat Hotel Prague.
