Rejuvenating iStill Copper Waffles!
iStill Copper Waffles are proprietary designed and manufactured round copper foam discs that replace copper columns. Copper in the vapor path catalyses sulphuric compounds that may have developed during improperly managed and controlled fermentations.
Even though better fermentation control is the real solution to a bad ferment, copper can help clean up a suboptimal fermentation. At least partly. That's where copper distillation columns come into play.
But ... but copper columns are high-maintenance. They are expensive to purchase and difficult to clean. Think about 2 to 3 hours of additional manual labor per day. Think about the application of aggressive and toxic substances, to clean out your copper column and to make sure copper rust formation and copper particle contamination does not become an issue.
Copper is a heavy and heavily reactive metal after all. You do not want copper to end up in your craft distilled spirits.
So, our solution has been that we advise Stainless Steel columns and that the distiller can add iStill Copper Waffles to the lowest part of the column. Two waffles have more copper surface area than a complete copper column. The waffles are much less expensive and do not need hours of cleaning per day. A win/win-situation.
But copper does corrode. Even our copper waffles. Copper oxidizes, both the copper in columns as well as the copper in our waffles. This means that copper wears out. And as we hate wear-and-tear, we are working on a solution. iStill is working on procedures to rejuvenate the Copper Waffles.
How? By use of electrolysis. The first step cleans out the brown, dirty, and oxidized copper. The second step replaces it with new copper! Yes, you heard that correctly: we are working on a protocol that completely rejuvenates your iStill Copper Waffle! More info on that in Q1 2024.
A brown, dirty, and oxidized copper iStill Waffle ...

The cleaned and rejuvenated iStill Copper Waffle ...

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