Originally Posted by J'ville Grill
It doesn't have to be FOOD GRADE. If it is FOOD GRADE then it will most likely have the liner.
What ^^^ he said.
Food grade drums for UDS is the biggest myth out there right now.
You DO NOT want food grade drums to build an UDS. Anyone that suggests such is mistaken. (Sorry all, but this has to be straightened out)
What makes a standard steel drum "food grade" is the food safe lining in the drum.
For a UDS you want that liner removed as it is not designed to withstand regular heat of 200+.
If you remove the liner, you now have a standard steel (non food grade) drum.
So just start with a steel drum with no liner and you are way ahead of the game.