Originally Posted by castlepines
Hmm...so what does BPS mean when they say "food grade" then? It seems "food grade" means "liner" but they say it shouldn't have a liner.
Food grade = liner to protect the drum from acidic materials (Fruit Juices), and/or protect the materials from leaching metal (think of how canned vegetables taste. Some of the "tinny" taste is from the unlined can they came in.
Non-Food grade = no liner, because the things they held weren't necessarily acidic (VOCs, oil, gasonline, brake fluid, etc) or corrosive.
Unlined barrels are easier, because you can go straight to build and season and cook. No burnout is required.