I stored some grocery store brown rice in the garage about February, as my first effort in long term storage. As time went by and I read more and more, I looked and noticed some flying bugs in and around the (not airtight) plastic containers. Finally after a long hot summer (hotter and longer than I expected for NC) I decided to inspect the bags with a mind to rotating the rice out of LTS. Well the flying bugs were indeed inside the tubbies, but I did not see any in the rice. What I did see was lots of brown residue inside the intact plastic bags. It was dry and like tiny particles, not dust. I decided to sieve out the brown stuff with a strainer, which went pretty well. I did see a few (only 3 in the batch of rice that I sorted) insects, tiny worms.
Since I had the bags out I decided to cook up a cup of brown rice for dinner. I use an excess of water and boil for 40 minutes, works every time. Except this time, the rice was extremely white, and really mushy. It seems I was left with white rice, that was way overcooked, and the brown stuff was the bran from the rice grains. Now I don't know if it was due to the high heat, or the insects, or what, but it surprised the heck out of me. Has anyone ever experienced this, or heard of it?