Fat white guys or not. Pretty or not. Doesn't really matter... That is some un-purged oil. Butane does nasty shit to the nervous system. Its my opinion we should be leaving butane alone period. Lot of folks here argue its just fine but few actually have chemistry degrees. Talk to a chemistry professor for a while about it and it could change your mind. Iso is safe thus why people are essentially using it to clean up butane extractions. doesn't get any safer than with ice water either.
...not to mention making bho is asking for trouble in CA. why risk it when there are other ways?
Ummm, I'm no longer pretty, qualify for fat and mostly look white, except for the eye folds and winged native American mandibles to the observant, and comment only on concentrates that we make, or that of others that we've tested at SPR.
Speaking for Skunk Pharm Research, with the resources of a graduate Biotechnologist, and a licensed Pharm D, Dr of Pharmacy reviewing our extracting and formulating, I have a different perspective. You are free to use it, should it prove useful, or discard it if not.
Before leaving that subject, as a full disclosure, I'm a retired manufacturing engineer, not a chemist. To attach appropriate gravitas to your observation, do you have a degree in biochemistry, or better yet, biotechnology?
My different perspective is that GC/HPLC/MS tell us that no two concentrates are created equal and some have more residual fertilizer/pesticides/mold/solvents than others, regardless of how they were extracted, even if it was exactly the same.
A quality extract must be controlled from seed to final polishing, cause as we all mostly agree, you can't make chicken salad out of chicken manure, regardless of process.
That said, as a matter of ongoing published third party testing lab records, that PHO, BHO, QWISO, and QWET can all be made to FDA standards, or not.
It is also a matter of public record, that water borne diseases are the leading cause of death worldwide, so hailing it as Mother's Milk detracts from the impact of your argument.
http://www.voanews.com/content/a-13-2005-03-17-voa34-67381152/274768.html