Ethanol is the only option that is completely natural and not a petrochem/oil derviative.
There's no chemical residue to remove after using dry ice to extract but there's plenty of plant waxes and general crap that will be.
It filters out as a cream coloured fat leaving 'absolute' after proper evaporation of the alcohol/water.
It's not so bad if you do it properly and get a license to distill.
I think you can have a single pot no bigger than 11L for non commercial use (11L of Ethanol per batch is not to be sniffed at).
You must stipulate what you are going to be distilling beforehand.
Draw up detailed plans of the distillation premises, the equipment to be used and also the exact process.
Pay a fee and get a license that lasts 10 years the same as the modern Personal License that I have.
A lot of info can be found on Direct.Gov I think, it's not too hard to find if you put a bit of effort in, you might have to think smart about finding some stuff as I looked 2-3 years ago for me to get licensed.
The thing the only real hurdle I encountered was I think a rule that said you can't produce at the same premises as you live so that meant me getting other premises or use someone else's and have them co named on the license or some shit like that.
It's not the pots it's the fumes.
Evaporated vapour mixed with oxygen (oxygen being the accelerant) in the air creates a super explosive gas.
As with any volatile and quite flammable substance........
"Use in a well ventilated area away from naked flames and ignition sources"
...........it's common sense.
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sorry man im a bit stoned could u talk me thru tricomes to absolute via 95 % ethanol of link summin thanks