Plastic #2 (HDPE) Put in Recycling Cart/Bin If a container once held liquid, empty the container as well as you can before recycling it. Containers with food and liquids can contaminate whole batches of recycling and are often sent to a landfill. If the container has a plastic lid or cap, it’s okay to recycle the caps and lids as long as they are still attached to their original plastic containers. Generally, like materials can be recycled with like materials. No Plastic Bags in Curbside Recycling Many plastic bags are labeled plastic #2 or #4, but they are too thin to recycle with hard plastics and will get caught in recycling machinery. Find out how to dispose of plastic bags. Help Prevent Litter Plastic #2 is a lightweight material that easily finds its way into the environment, where it can leach toxic chemicals. Dispose of it properly to prevent it from becoming litter. Empty Motor Oil Containers are Hazardous Waste Even if an empty, cleaned motor oil container is marked as HDPE #2 plastic, it is still hazardous waste. Learn how to dispose of empty motor oil containers. Did You Know? What Plastic #2 Can Become Plastic #2 can be recycled into new plastic jugs, plastic lumber, patio furniture, flower pots, buckets, recycling bins, benches and fencing.