Is there a way to buy food in bulk cheap in Germany?
Upvote:2
Buying in bulk in Germany screams for METRO. Here's a list of locations. You can easily get things like 10kg blocks of cheese.
Caveats:
It's not necessarily cheaper than discounter supermarkets when calculating the price per kg. But their package sizes are much more convenient if you cook for 50+ people.
You need to be a "Gewerbetreibender" (own a business) or be a registered association (like a sports club) to get access. Though I know a few people that meet neither criterion themselves and still shop there. All you need is to know someone who does and who can give you a temporary pass.