You can check where you are allowed to consume in public on this website (click the button saying “Verstanden, zeig mir die Karte!”, you are agreeing to a no warranty disclaimer): https://bubatzkarte.de
The regulations don’t apply to private spaces and only when in sight of the protected locality in the centre of the red circles.
And there are other regulations, so many other regulations…
But hey, I can at least legally consume in the privacy of my own home now, so I got that going for me, which is nice.
You can legally consume in privacy if nobody complains and you don’t happen to live in sight of a school or other protected buildings lol
Well please correct me if I’m wrong here, but to my knowledge consumption in private is just entirely unregulated. If you have a house right next to a kindergarten you could consume in there at any time. The part of the law I looked at (§5 KCanG) beyond public consumption just regulates consumption in the “immediate” presence of minors and on military bases.