We're can I find what we are able to bring with us to the Fair as far Drinks, water etc.

Drinks allowed ..... go to hamburg fairground website

I brought a couple bottles of water a pile of snacks couple of energy drinks a 20 sack and a bowl.

Coolers and drinks can be brought in via car but may not be brought in through the gates.

You can bring drinks and water

I brought a cooler with me and had bottled water and drinks for the kids and they let me in. so you should be okay with bringing stuff as long as you can open up the cooler and show security