What is the regulation about bicycle driving in Germany? What is the acceptable alcohol rate in blood?
So, am I generally allowed to drive a bicycle after 1 or 2 beers? In Poland, for example, I could go to prison for that.
Dirty-flow's answer is not really wrong, however, I want to substantiate it a little bit. To quote from fahrrad-recht.de:
The translation is more or less (just the important parts):
Driving under the influence of alcohol is generally forbidden, if your not able anymore to participate safely in traffic. There is no concrete alcohol limit for that. If it is clearly obvious that a biker shouldn't participate in traffic, the limit of 0.5 can also be used for bikers. If the biker has caused an accident, it is even possible to use a limit of 0.3. At 1.7 and above, it is illegal in every case. Some courts have also used a 1.5 threshold.
The drink-drive limit for a bicycle in Germany is 1.6. So if you have more, than it's better to walk. But if you drink only a beer or 2, it should be no problem at all