CO2 Extraction
Posted: Fri Mar 15, 2019 2:16 pm
Dick Fein wrote:I have a notion that you can recover and reuse the co2 indefinitely where you can't really recover the butane.Hacks wrote:BHO seems more everyday practical doesn't it?
Plus the safety factor is attractive.
Even if you can't recover the C02, the cost of it is far far cheaper than butane or ethanol. Though I believe there is considerable electricity usage with CO2 extractors.