# Episode 294 - Perlite and fluoride toxicity: continuing the conversation.

Page: https://stenobird.com/podcast/the-houseplant-coach-3350890/episode-294-perlite-and-fluoride-toxicity-continuing-the-conversation
Text version: https://stenobird.com/podcast/the-houseplant-coach-3350890/episode-294-perlite-and-fluoride-toxicity-continuing-the-conversation.md
Podcast: [The Houseplant Coach](https://stenobird.com/podcast/the-houseplant-coach-3350890)
Published: 2025-10-27T18:31:27+00:00
Episode link: https://www.spreaker.com/episode/episode-294-perlite-and-fluoride-toxicity-continuing-the-conversation--68301163
Audio file: https://api.spreaker.com/download/episode/68301163/podcast_1761584857.mp3
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JSON: https://stenobird.com/v1/public/podcasts/the-houseplant-coach-3350890/episodes/episode-294-perlite-and-fluoride-toxicity-continuing-the-conversation
Duration seconds: 4439

## Resource

Recently(ish) someone brought a video to my attention from a soil scientist who was talking about the concern with perlite and fluoride toxicity. There were a few issues with the data and the points presented, and while the studies I found that line up with this video do show little cause for concern, they weren’t designed with real-world applicability in mind. Listen to the episode for these points as well as what we can do to minimize risk. And, as always, Oh Happy Dirt remains perlite-free because it’s my job to make it the absolute best available :) Also, right now (end of October/early November 2025) there’s a sale on: spend $50, get a free quart of either V’s Mix or our hoya soil. Https://OhHappyPlants.shop

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## Transcript

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