Folks,
While I've been cleaning up the bits and pieces completed thus far in my build, I've noticed that the copper which was once clean has now regained that dark brown patina, and in some places has a green tinge. This, I think is oxidation, and seems to occur quite quickly. This doesn't matter so much on the outside of the parts, but it happens on the inside as well, thus making contact with the vapour run.
So what do people do when they dismantle their modular still to store it for a while? If left exposed to the air, this oxidation will occur every time. Does one need to perform a vinegar cleaning run, followed by a sacrificial sugar run each time the modular still is erected? That seems like a time and power waste.
Is there a trick to this? Do folks store their parts in plastic bags flooded with carbon dioxide? That might solve the problem, but where would I find a ready source of CO2?
Or do we not worry about this? Our first neutral might be mint-coloured?