Posted by t-3 8 hours ago
If you're into home brewing or distilling, the first and only comment people completely unfamiliar with the process say is something about going blind because of methanol. It's disappointing because the process is so rich with history and really interesting problems to solve but the zeitgeist is completely poisoned by prohibition-era propaganda.
I live in a city with 2 distilleries. You can smell when they're dealing with the mash because everyone in town can smell it. Also, we all get some black mold (not the really bad one) all over our siding which I think is some byproduct of the fermentation step.
My father worked in the oil business. As a chemical engineer, he was brewing his own moonshine (Poitín [pronounced 'poh-cheen'] in Ireland, Sidiki [means 'friend'] in Arabic language countries) since he was in university. In Saudi Arabia, there were frequent home fires in the western-expatriate communities. Newspapers reported them as "unattended cooking pot" fires. It happened several times per year in the Ras Tanura community they last lived in.
> The fungus can be removed from buildings using high pressure water jets, bleach, etc. According to a report from the Kentucky government, it has not been shown to cause anything other than cosmetic effects thanks to its mode of nutrition via the carboniferous atmosphere, rather than the decay of building materials in general.
It reaches higher up the siding than I can reach with household cleaners. It makes the house look dirty. Which I really don't care about, since most folks in the neighborhood have the same schmutz on their homes. It doesn't seem to like cement, so sidewalks & foundations aren't affected (that I can see).
1. Most use propane burners (the exact thing you'd use for homebrewing which is already legal and safe, and also similar to what some large turkey fryers use) which can be risky, but some are electric (120v or 240v).
2. Stills are an open system insofar as there is a way for pressure to escape - if you're goofing things up, you might vaporize and not recondense your ethanol (eg, because you have the heat way too high and/or aren't doing a good job of cooling down the vapors), and it's possible for that vapor to start on fire. I've seen it happen, and it's certainly a spectacle but wasn't particularly dangerous.
3. The distillate itself (ie, ethanol) is usually pretty potent, especially the foreshots and heads. Let's say 70%+. Especially as it's coming out, it's still prone to evaporation, and you could have a combustible/explosive risk here, but I've never seen this to be an actual problem.
today's home stills are usually plug-in resistance heated chambers with a still head, and are very high quality. my flame-out was from a pot still that was sealed with flour and water, not a modern still.