# Your Washing Machine Sheds Up to 18 Million Microfibers a Load

Page: https://stenobird.com/podcast/how-to-protect-the-ocean-2010/your-washing-machine-sheds-up-to-18-million-microfibers-a-load
Text version: https://stenobird.com/podcast/how-to-protect-the-ocean-2010/your-washing-machine-sheds-up-to-18-million-microfibers-a-load.md
Podcast: [How To Protect The Ocean](https://stenobird.com/podcast/how-to-protect-the-ocean-2010)
Published: 2026-09-09T13:30:00+00:00
Episode link: https://www.speakupforblue.com/podcast
Audio file: https://traffic.libsyn.com/secure/scicon/HTPTO_2020_-_Microfibre_path.mp3?dest-id=228444
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JSON: https://stenobird.com/v1/public/podcasts/how-to-protect-the-ocean-2010/episodes/your-washing-machine-sheds-up-to-18-million-microfibers-a-load
Duration seconds: 789

## Resource

Every wash cycle sheds plastic. Last Monday, Andrew talked with Dr. Anja Brandon of Ocean Conservancy about microfiber pollution, and one question from that conversation stuck with him: has anyone actually fixed this yet? In this solo follow-up, Andrew traces a microfiber's actual path, from the moment agitation, heat, and detergent work it loose from a shirt, through the drain, into a wastewater treatment plant, and out the other side into biosolids, farmland, rivers, and the ocean, with a growing body of research suggesting some of it ends up in human lungs and even in the human placenta. Along the way, Andrew digs into what actually controls how much a load of laundry sheds (full loads shed less per item than half-empty ones, machine type matters, and detergent's role is murkier than expected), what the current health research says about needle-shaped fibers lodging in tissue once they're inhaled or ingested, and why a fix that already exists, a washing machine filter, keeps stalling out politically. France passed the world's first law requiring one, and it still isn't enforced. California tried and got vetoed over a cost of about $14 to $20 per machine. A federal bill is sitting in committee. Andrew also runs through the three consumer-level options available right now: the Cora Ball, a Guppyfriend mesh washing bag, and a PlanetCare retrofit filter, each with a different tradeoff between cost, maintenance, and how much they actually catch. This episode sets up tomorrow's deep dive into Ocean Conservancy's Not Safe for Wash campaign, including the capture-rate dispute between Ocean Conservancy and the appliance manufacturers' trade group that's currently stalling the push for a federal requirement. Takeaways: A single load of synthetic laundry can shed anywhere from…

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## Transcript

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