<<Disclaimer: Verify this information before applying it to your situation.>> Hi to all, After reciving the following response to a post I put out concerning wheat contamination in corn, I feel the need to clear a couple of things up, with out trying to cut any one down. As I understand, the purpose of this list is to foster a discussion of ideas and facts, and as such, I welcome questions to any of my postings. >Since in any process involving large volumes of grains, some >fragmentation will occur - leading to some wheat *particles* and >*dust* being mixed with the corn, and since THIS is NOT "easy to remove >due to the large difference in size, I do not believe that your >reasoning is sound. The first part of this statement is correct. Moving large volumes of grain does break up some of the grains, and does create dust. However, the broken up pieces of grain and dust are in fact even more readily removed from the whole kernal corn by simple size seperation, the size difference is now even greater. A process called aspiration where a finely tuned air stream is pulled through a flowing stream of grain lifting away broken particals of grain and dust. This aspiration is generaly done as the first step in cleaning grain, and also as the last step, just before processing begins. >IHMO, if the wheat was ever mixed with the corn you WILL get SOME gluten >in the corn. Yes, even though it is very easy to remove wheat from corn, there is still the possibility of cross contamination, but is far more likely to come from sources in packaging the finished product, or using the same processing equipment for multiple grains. (using the same processing equipment for multiple grains is not common in the large milling companies in the US, packaging equipment is another story.) I would like to say that I am not "shooting from the hip" making this post on grain processing. I have a B.S. in Milling Science, and 10+ years of experience in real world milling, and another 7+ in grain moving and storage. Before I endevored to post on corn processing, I contacted a friend whom is plant operations manager of one of the largest dry corn mills in the US to confirm what I was going to state about corn milling and cleaning operations. I am in the process of trying to contact a friend in the rice milling industry to obtain more information so I can make an informed post with respect to that very important food. To end this post, I would again like to say I welcome the comments and questions, and will try to answer any as clearly as possible without overwhelming detail. Best to all, and Happy GF Holidays Steve Warm in S. FLA