This reminds me of a something I found out while working at a vegan restaurant which will is ironic with the tale, I saw on the label for our roll of aluminum foil that it was labeled Kosher. Which I thought was weird cause it's aluminum foil. So looking into it what the deal was that the factories producing the foil lubricated their machinery with some kinda pig lard based lube cause they could buy it cheap from the pork industry. Do now they use machine lube not made of pig fat. The making things Kosher crowd has done a bit for the vegans.