This blog post was reviewed and updated on March 30, 2026.
Is rubber mulch toxic?
The science of 2026 tells us that it is not toxic. You can read about two recent studies that clearly show rubber crumb, from which rubber mulch is made, is not toxic.
What Exactly is Rubber Playground Mulch?
Rubber playground mulch is made from shredded, recycled tires. It's a product that gained attention after being installed at the White House playground. The mulch consists of small chunks of these recycled tires, with all tire wire and steel completely removed.
How is Rubber Playground Mulch Manufactured?
The manufacturing process of rubber playground mulch is straightforward and eco-friendly. It involves the following steps:
Collection of Tires: Worn out and unusable tires are collected and delivered to recycling facilities.
Removal of Steel Belting: At these facilities, any steel belting within the tires is meticulously removed.
Shredding Process: The tires are then shredded into small chunks and granules using industrial-strength machines.
Magnetic Separation: These granules pass through powerful magnets to remove any remaining traces of wire.
Cleaning: The shredded material is thoroughly cleaned to ensure safety and quality.
Optional Dyeing: Finally, manufacturers may dye the granules into various colors. After this, the rubber mulch is packaged and shipped for use in playgrounds.
What are the Benefits of Rubber Playground Mulch?
Rubber playground mulch is considered safe and straightforward, offering optimal protection in playground settings. Its manufacturing process does not involve chemicals or heat, making it an environmentally friendly option. The mulch provides a cushioned surface that can help reduce the severity of injuries from falls, making playgrounds safer for children.
