Jesus knn, have another look at the advice you've been given along with a bit of funning with you. Why one even want to make essence is beyond me. I suspect that you just maybe a troll. Sorry to be so blunt. Now you can put me in the unfriendly bastards list too, assuming I'm not there already.
Simple potstiller. Slow, single run.
(50 litre, propane heated pot still. Coil in bucket condenser - No thermometer, No carbon)
The Reading Lounge AND the Rules We Live By should be compulsory reading
Cumudgeon and loving it.