Last week I went out with my roommate and with her friends, and they took me to an amazing place!!
We went to Eschenbräu Bräurei in Wedding. I am sure that if you are just a tourist, it is not so easy to discover this place, since it is so hidden and with full of locals.
The idea behind this pub it that EVERYTHING is home made. Their focus is on homemade beer – a whole selection of it – however they also serve German specialties – Apfelschorle etc. My favorite was the homemade apple juice, which was amazing!!!
You are more than welcome to bring your food there – I saw people eating chips and sandwiches at the other tables – you only need to buy the beverages. Therefore, it is the perfect destination for birthday parties, or other celebrations; you can spend your time with your friends in a great atmosphere that is cozy and cheap. In the summer they have tables outside with some special lightning. It is quite hidden, located behind some residential buildings in the basement; Google maps does know where it is, but when you go there for the first time, you might want to ask some locals around to help you with the navigation. I think it is a must to go to this place, if you are in Berlin. :)