Alright, I feel like maybe I should clear something up.
When extractors are buying high purity solvents, you’re not buying 99.999% gas. From anyone, I don’t care what they say or who they are - if you’re buying that quality of gas, you’re going to be paying a lot more than a couple hundred bucks a tank.
The solvents that you’re buying ARE refined, they are just refined to a minimum threshold of 99.5%. That means that there will always be that chance of .1-.4% of contaminants.
It IS the responsibility of the extractor to distill their gas. But like mentioned in this thread, you also have to account for what the ACTUAL toxicity level is for these “mystery” oil components. You have no idea what kind of garbage is allowed in our food via the FDA regulations.
https://future4200.com/t/mystery-oil-with-no-opinion-just-facts/