To take it to an extreme, I doubt the best barista in the world is going to get a good shot out of the default Starbucks beans. But maybe I'm wrong!
Beans can't compensate for the lack of skill.
Or do you mean an Americano? Are you adding water afterwards?
It's not an espresso.
No... no water. The Brikka has a pressure valve and the 200 ml of water yield about 125-150 ml of coffee.
You might call it a double lungo, but with a bit of crema (yep) and no acidity or sour taste. Just sweet coffee with nice chocolate notes.
I use coffee beans from Papua New Guinea, roasted locally at the coffee shop.
You may try whatever amount of water you want... just don't let it burn in place!
There is a subtle balancing act between the quantity of coffee in the basket (how much headspace you keep) and the amount of water ( a ratio of 10:1 with the coffee -- before making the coffee -- yields good results for me).
So ... if you put less water, that means less coffee... which means more empty space in the basket, which modifies the dynamics.
Pro tip: use as little heat as possible to get the water to a gentle boil. Otherwise you might burn the coffee in the basket. Bad.
In short, you will have to experiment...
[1] https://www.reddit.com/r/Coffee/comments/15zabe/does_the_bia...
The brikka is exceptional, if you like espresso.
I have a Brikka "Induction" with a stainless steel machined bottom part. Today I looked and apparently they decided to skimp and only offer the aluminum (non induction compatible) version. Pity.