I am a metal worker, and a foodie, living on a farm, and have experience and contacts in varios parts of the food industry, and have never come across lead, in any food relate items. As to alloying with lead, it has been used historicaly to make steal easier to machine "free machining steel" , but has no part in high strength or tool steels, and the steels used in grinding machines are going to be food grade..... even the grease in the bearings is food grade silcone grease....got some in the shop.... Good stainless wears for ever, so it is always used, at least here in Canada. So back to the lead and heavy metals, and how they are intentionaly added as "flavor enhansers" and coulorants, and basicaly how crazy people are and will do anything to steal a buck, but of course, not before passing it.right! personaly I eat only food, I make from individual single ingredients, prepared at home. The most complex food I buy is cheese, and very rarely icecream, thats it.And even then, there are things that just seem WRONG, like some grapes, that had an impossible "floral" aftertaste that lingered for hours......and now wont rot, sitting on top of the fridge. I could go on at some length, about all of the fraud in food, but Food is cheap, and there is no way to impliment a system with continious checks and investigations, that would guarantee quality and purity, without quardrupling the price, and perversly, increasing the incentive, to cheat.