I and another member here were curious as to the possible differences between extracts made with supercritical CO2, and supercritical n-methane. It seems as if they both would act as similar solvents, but if I lead on as if I had the first clue I'd be lying. Seeing as supercritical CO2 units are a magnitude of 10 more expensive than products made for methane extraction (we can thank a not-so-legal in all 50 states industry for this).