Everyday Recycling Mistakes You're Making—And What You Should Do Instead

Public confidence and trust in , only about 32% of household waste is recycled or composted, according to 2025 data. More Americans believe that recycling bottles to cardboard boxes, recycling is important—and has an impact. Recycled materials are key to reducing the extraction of natural materials like timber and aluminum. “It’s a really low-hanging fruit of something that you can do that does have a difference,” says Shelie Miller, professor in the School for Environment and Sustainability at the University of Michigan.

What should you avoid recycling?

Avoid recycling things like plastic bags, which can jam machinery, and batteries, and refrain from bagging your recycling in trash bags. While many plastic products have a recycling symbol with a number in the middle, it doesn’t always mean it can be tossed in the recycling bin. The label simply denotes what kind of plastic it is.

In fact, plastic is one the biggest sources of confusion when it comes to recycling. Most places only accept plastics 1 and 2—commonly used to make soda bottles or laundry detergent containers. Some places might accept plastics 4 and 5 (think a yogurt container or plastic straw.) “The rest are not really recyclable at all, and some are really bad to put into the recycling system in practice,” says Jennifer Russell, associate professor of Sustainable Biomaterials at Virginia Tech. Incorrect recycling can cause the machinery to break down, or contaminate the batch, degrading its value. 

Perhaps surprising to some, however, it turns out it is okay to recycle a greasy pizza box—as long as you eat the last slice. “A little bit of food residue is not a problem,” says Marshall. That’s because processing technologies have gotten better with time, and are now able to handle a small amount of residue. “Just don't throw anything in your container that a raccoon would still want to eat off of.”

Meanwhile, if something is compostable, it does not mean it can be recycled. “Compostable and recyclable are two different things,” says Miller. “If you have something that says it's a compostable cup, often that means it's compostable plastic. Compostable plastics can't be recycled, and they have to go into a facility marked as [able to break-down] compostable plastics, if they're actually accepted in your community.”

Why you shouldn’t ‘wish-cycle’

Refrain from what Russell calls “wish-cycling,” the practice of putting something in the recycling bin and hoping it's recyclable. “People really want to do the right thing and err on the side of caution, and that's just a big problem because recycling systems are designed on the basis of material, not on the basis of product,” says Russell, who notes that incorrect recycling can lead to more harm than good. 

“Wish-cycling is actually one of the biggest drivers of the high costs of the system. If we were putting just the right materials that are being asked for—aluminum cans, number 1 and number 2 plastics, the systems would have less contamination, less shutdown issues, and the materials coming out the other side would be of much higher value.”

Another important change? Cut down on the number of things you buy—and reuse what you can. “Reduce and reuse are two important R's before recycle,” says Marshall. Bring reusable grocery bags when shopping, and consider seeing if there’s a refill or zero-waste store