Things That Shouldn't go into the Dishwasher - part 13

Containers With Paper Labels
Along with your deli containers, you may also save glass food jars for storage. There's no problem with placing the jars in the dishwasher, IF you remove the paper labels first. If you don't, the paper and adhesive may come off and clog the dishwasher drain and food disposal system.

Extra tip: One of the best label/adhesive removers on the market is Un-Du with a built-in scraper. 
Comment:  Never heard of the Un-Du but sounds like something that might be worth checking into.  I have washed containers before but have had enough brain to soak the paper part in hot water to remove the label before going into the dishwasher.