Originally posted on @theU on March 25, 2019.

By Ayrel Clark-Proffitt, Sustainability Office

“You think you know…but you have no idea.”

Sure, this is the lead-in for a celebrity exposé series on MTV, but in reality, it’s probably the best line to describe the state of recycling. Recycling isn’t a particularly new concept, even in the United States—Depression-era families couldn’t afford to throw things away and wartime conservation pushed for reduce, reuse, recycle before it was a “thing.” But the system we know today came out of the 1970s, 80s and 90s.

Chances are, the majority of people who recycle have been doing it wrong for decades. Recycling bins have long been the receptacle of hope—“aspirational recyclers” toss everything in the bin because they want it to be recyclable. That’s not how it works. Now, with China and other countries banning the import of a number of waste materials, including post-consumer plastic and mixed paper, as well as reducing the contamination threshold for other materials, learning to recycle right is more important than ever.

In January, the Sustainability Office, in partnership with Athletics and Stadium & Arena Event Services, launched the “Recycle Right” campaign at the Huntsman Center. We installed recycling and trash bins that follow best practices in waste management and added eye-catching posters designed to remind people to think before they throw. Then, on March 2, we decided to test how well the bins were working as part of the Pac-12 Team Green push to promote sustainability in conference sports facilities. After the gymnastics meet (in which our Red Rocksachieved a season-best score and beat Michigan!), employees and students in Sustainability and Facilities opened up the bins.

We found recyclables—cans, plastics, perfect “10” signs—but we also found a lot of contaminants, aka trash. Contamination has long been a concern in single-stream recycling, where all recyclable materials go in one bin. The U uses single-stream recycling in the Huntsman Center to make recycling easier for fans and to reduce bin space. For the recycling bins on March 2, half the material by weight, was in the wrong bin. (By volume, an alternate way to measure, 40 percent was trash.)

We know people want to do the right thing, so we’re here to help you do the right thing right. Here are the top five contaminants we saw in the Huntsman bins:

1. “Paper” soft drink cups
   Just like “paper” coffee cups, soft drink cups from concessions should go in the trash. While the outside of the cup is paper, the inside is a thin layer of plastic, which is what makes it able to hold liquid. It’s next to impossible to split the materials, so multi-layered cups go to the landfill.
2. Liquid
   No liquid should go on the recycling side. So, if you have a soda bottle that is half empty that you want to recycle, empty the liquid first and then place the plastic bottle in the recycling bin. Same goes for water.
3. Food
   Food is particularly problematic when all recycling is placed together. Large amounts of recyclable paper ended up in the trash because of food, syrup from ice cream and liquids. How clean should a container be before it goes in the recycling bin? Its contents shouldn’t spread to other materials. Also, popcorn isn’t recyclable.
4. Food containers
   Paper popcorn bins should go in the trash, because like the cups, they are lined with plastic. Additionally, the red-checkered boat and paper need to go to the trash can.
5. Napkins
   Yes, they are paper, but they can’t be recycled. Napkins are often soiled with food or human by-products (eww), plus the paper is such low quality that it doesn’t get recycled even when unused.

By eliminating these items from recycling bins, we can significantly reduce contamination and improve our recycling totals. It takes a community, and luckily, we’ve got a good one.