How do you create a German craft beer brand, when the people behind it want to stay anonymous?

If you can't tell the real story. Make one up. BREWERY NAME: FIKTION

What? How? Where? When? Why? Who? That's all we'll tell you, and that's all you'll need. BREWERY NAME: 6W

Might end up looking like this. Minimal techno.

3 beers. This one. That one. The other one. And it's made by...Them 

Or maybe stop thinking like a beer. Think like a record label. Drinks for every tempo. BREWERY NAME: MUSIK

Or, go with the German for 'spark of inspiration', something else no one knows the origin of. NAME: DER FUNKE

It works in German, sounds cool in English. Seems like a pretty safe bet.

And there's the last option. Do none of the above. Which is what happened. Bastards.