Well, teflon is a "forever chemical" (PFAS) and the consensus seems to be it's not wonderful if it gets inside of you [1]. Silicone is a PFAS alternative and a

Well, teflon is a "forever chemical" (PFAS) and the consensus seems to be it's not wonderful if it gets inside of you [1]. Silicone is a PFAS alternative and a little safer, but also not wonderful if it gets inside of you [2]. All of which is to say that your device should be OK as long as no one puts it inside them. AFAIK anyway. [1]: https://www.cancer.org/cancer/cancer-causes/teflon-and-perfluorooctanoic-acid-pfoa.html https://www.cancer.org/cancer/cancer-causes/teflon-and-perfl... [2]: https://www.healthline.com/health/body-modification/is-silicone-toxic#symptoms https://www.healthline.com/health/body-modification/is-silic...