No re-usable containers for the food bank
I buy peanut butter in the largest jars possible, about 2 lbs, and re-fill the jars with beans, nuts, grains, and pasta when buying in bulk or in packaging that might not keep out insect infestation. It occurred to me that the local food bank might want to distribute beans and/or rice bought in bulk in such jars, so I offered them some. They very politely explained that it wouldn't work for them. When they get, say, rice in a 50 lb. bag, they portion it out into ziploc bags, 1 lb. at a time. So, they have a process that works for them. Secondly, they don't have the resources to ensure that old containers are sanitary. I do, of course, but they don't know that. And, I suppose that their customers are likely and/or expected to eat the food they get promptly, not stash it in a pantry.
It was an educational experience for me. The distribution process itself, in case you're interested, is nothing like shopping. The bank fills bags in advance, and each client that shows up on Saturday morning gets "a bag". No selection, just grab your bag and make room for the next customer. I hope that their customers are willing and able to eat what they get, or otherwise ensure that it doesn't go to waste.
The other thing I observed is that the distribution starts around 9:30, advertised at 10:00, and dozen or so cars were lined up at 9:00. Almost all of them were idling their engines! If I had to take free food, I wouldn't burn a drop of gasoline that I didn't need to. (That said, some clients walk to and from the food bank. I have to give them credit for that!)