We don't eat them often. Usually with a dinner breakfast or shrimp and
grits, so they're a slow turnover in my pantry. I usually keep them in
a plastic container.

Last night I opened a box-Quaker Quick- that had been around for a
couple of months and the critters were rife.

Where do the little buggers come from? I've never had them show up in
my plastic containers, even after a year. And I can't remember ever
finding them in a reasonably fresh box. I'm talking 30 plus years of
moderate grits usage.

Did I just get a bad batch? Or are all grits critter-prone? If so, do
my airtight containers prevent their development? And what does an
undeveloped critter look like? Just another grit?