We currently brew 10 gallon batches using a three keg setup. Mash, HLT, and boil set up as a HERMS system. We're looking to increase the batch size to about 30 gallons, and with that in mind, I just acquired a stainless steel 55 gallon drum. A few questions for the group.
1. It's used, and I don't know what it was used for. How do I avoid poisoning myself? I was thinking about getting it electro-polished and passivated. Is that overkill? Is there another way?
2. I was thinking about using it for the boil kettle. Any thoughts?
3. Finally, if you wanted a mash tun for a 30 gallon batch, what would you use? I'd much rather fabricate something than buy a finished product. It is a hobby, after all.
Appreciate any ideas.