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zinc plated rivnuts in a boiler for a still

PostPosted: Fri Nov 05, 2021 8:43 pm
by bokastill
Can anyone tell me if zinc is harmful to your health if used in a keg boiler?

Re: zinc plated rivnuts in a boiler for a still

PostPosted: Fri Nov 05, 2021 9:11 pm
by bluc
Dont use zinc. Buy stainless rivnuts.

Stainless/ glass/ copper for anything above wash mash.

Food grade Hdpe for fermenter is ok..

Re: zinc plated rivnuts in a boiler for a still

PostPosted: Mon Nov 08, 2021 10:39 am
by indenial
Zinc plating contains chromium and other unwanted substances. Your acidic wash will (gradually) leach these substances into solution.
Zinc plated nuts will also setup a "galvanic couple" with the stainless keg causing the nuts to corrode quite quickly.