hoz wrote:Food grade metal...Cast iron? Stainless steel? Titanium? Aluminum? Copper?
some aluminum is not considered food grade. 3000 series aluminum is food grade. also called "utility". 5000 series is called "marine grade". 6000series is a harder alloy. 6061-t6 is the most common alloy used for round, square, tube, angle and other structural shapes, and is designated "no-bend". it will fracture.
even though copper is fun and easy to "tinker" pots and bowls out of. i would not use it for cooking. copper tarnish is called "verdegris" and is known to be poisonous. likewise, brass.
Daren (thirty years in the metal biz).........