Originally Posted by Smoke & Beers
I've been making UDS's for several years now...I've made over 20 of them and I've always used "food grade" barrels from a local bakery cause that way I know what has been in them and that they are lined.
When I get them, I cook the liner out, then have them sandblasted inside and out.
It may take a little more work, but I would rather start out with a "food grade" barrel with a liner than go with a "reconditioned raw" barrel and wonder what has been stored in that barrel previously...
That's my 2¢
Heck, we just grab the empty steel barrels, burn them out and cook with them.
With 5 UDS builds over the past several years, never had a problem.
Food grade (lined barrels) we give away.
Far too much work for lazy arses like us.
US law requires barrels that held hazardous chemicals to be disposed of at a licensed facility, and they are not permitted to be reused or resold.
So 90% (or more) of the bare steel drums you find, either had a bladder in them that held the product, or they held oil.
Our favorite to use is oil drums.
Oil drums (hydraulic, diesel, etc) are unlined plain steel drums, cause oil don't rust metal or corrode it.