Recyclables have to be sorted nearly perfectly at Recology's Pier 96 facility

In recent years, the mills and foundries that receive recyclables from Recology have stopped accepting material with more than one percent impurities, so the sorting facility at Pier 96 must work at a very high standard. On a tour of the sorting center, we learn what happens when things that don't belong in the recycling end up there, and what to do about things that are difficult to recycle, like plastic bags.