Because of the the difference in taste/smell when running my airstill at 320w and 175w. It's 175w every time for me now as the weird electronic switch won't let me go any lower.
Also, my first ever pot still run when young and green had me sealing the lid to a square type burco boiler with masking tape. I didn't know about synthetics or T/stats pre internet.
I ran 5 gallons of coffee wine through it and of course the seal kept blowing. (Worm condensor in a water bucket.) Ended up with me sat next to the still listening to the noise of it heating up and me (hopefully) turning it off just before the seal blew, then back on at a certain sound of 'fizz'.
16 hours that run took and was actually a stripping run as it ran until vapour temps were 98'C. (We knew no better.) Gifted a bottle to a mate that liked choice whiskies and he kept it as a liqueur for special occasions. It really was nice.
I got to seal the lid using bits of wood, twisted rope and spanners so much quicker runs but I never got close to the quality of that run.
If anyone has a power controller, please try it on your airstill, T500 or whatever and see for yourself. For a 25L wash I'll take a 1500w dirty wash over a 3kw clean wash, though a 1500w clean wash would be hard to beat.
