Pesky little beetle looking bugs...seem to find there way into every sack, baggie, etc., of corn I got. This is particularly an issue if you buy in bulk and use it over time. Last 50lb bag of white corn I bought, I immediately stripped it out, checked it for bugs and put it into gallon freezer bags sealed. I'll be damn if after a while...every single bag is full of bugs. They lay eggs, and the eggs hatch "inside" whatever container you put them in.
They won't really hurt you..but...they do chew the crap out of the corn (leaving dust in the bottom of the bag). Anyway, I've read that some of the ways to deal with it are to freeze your corn for about 3 days (which kills any bugs, or eggs). Freezing and thawing your corn shouldn't hurt it in regards to using it for it's starch. But, I don't know if it would have any impact on it's ability to sprout/malt after that?
For now, I sifted out as many as I could...and after pouring boiling water over my ground meal....I just scoop them out off the top with a strainer. Couldn't see "any" in the corn. Scooped out about 100 of them after pouring boiling water over it. You'll usually find them in the "bottom" of the bag, or close to it. And you'll see lots of fine dust...where they've been feeding. PITA. But, it's gonna happen if you buy in larger lots than you can use regularly. Another thing..if they get loose in your foodstuffs, they'll eat pasta, cereal, oats, anything.