Hey pals, just finished my sac run on a couple new pieces and I noticed this seemingly odd patina on the top plate. Is this normal?

Saw the still on facebook was wondering it is good enough to start out with this electric stove? Thanks for any awnsers!

Good evening everyone. So, just a question on oak aging. I just ran a spirit run of a corn, wheat, barley, malt extract, low wine combination, with a twist of peated malt. Good stuff. Seriously. I have two full gallons set aside to age and want to use a badmotivator barrel. I was just wondering if anyone had an idea how long I'd want to let that age to be a really good whiskey? I know that normally in full barrels three to four plus years is what's best, but am wondering if the BM barrel makes a good drink within six months or so?

Having a hard time finding a 1" coil for my 55 gal stainless build that's not 60ft. Would 3/4" coil coming off a 2" lyne arm from the thumper be good enough ? Or would I need something bigger. I was thinking of taking a peice of 1" copper pipe capping and soldering the ends and packing it with sand and wrapping it around something cylindrical. Any suggestions or would the 3/4" be fine.

Setup is 55 gallon drum 2" line arm straight out to elbow, down to 6 gallon thumper, back up, then an elbow with a small length of pipe with a cap on the end that I intend to drill to fit my worm.