We have news for those that use the first generation, 6 liter iStill Mini. We designed a copper waffle, to help battle sulphuric contaminations. If you want to order, please reach out to Finance@iStillmail.com. They cost EUR 50,- a piece. That’s with transport (mail) included.
For comparison: iStill 500 catalyst and iStill Mini 6L catalyst …
The iStill Blog 