Notice how many cookbooks tell you to sift the flour? have been told two things bout that, one that it aerates and unpacks the flour, so you get consistent measurements. two, it strains out mouse pellets and such. Well, consider primitive agriculture, oxen grinding out the corn, most likely defiling it a bit. Hams hung in the attic, who knows what crawled over them. Bits of caked-on crap falling from the cow's udder into the milk pail. We're still here, possibly mankind does not need to be quite as puckey-free as we civilized types would like. Oh yes, my mom worked in a ketchup factory, they were supposed to get MOST of the worms out of the tomatoes as they sped by on a belt to the squishing machine. Most. There, Yar, we've grossed everybody out, at least they'll be glad they are not eating flour and ketchup anymore. Bill