I would not want to be inhaling any residual isopropyl alcohol or butane. If you've ever cleaned a bong with isopropyl alcholol and taken a deep breath by accident it's not a mistake you'll make twice. Deeply unpleasant, expect lightheadedness, nausea, headache in the best case. A family member of mine died due to scar tissue on her lungs from a lifetime of breathing in solvents from hospital cleaning products so I'm probably more sensitive than some but still - I would be EXTRA careful where solvents are concerned.Fat_old_dwarf wrote:I get a similar taste off the hash from Tweede Kamer/Dampkring 2 that comes in wax paper – C3 and something else very much like it that I've forgotten the name of. Which leaves me in a dilemma. The taste itself I now like in the way one does an acquired taste, and undoubtedly also because I associate it with a cutting-through-tolerance high. But how bad for the lungs is it likely to turn out to be?OneHighMofo wrote:There is definitely some low-grade oil used to make Jelly Hash (usually a combination of a few different extractions) - either BHO or QWISO (alcohol wash) so yeah - I'd be VERY suspicious of inhaling that in any form never mind as a dab.
If you taste any plastic / petrol anything resembling solvent fumes in your product please throw it away, it's just not worth the risk.
Making Rosin with import hash can often expose (via concentration) contaminants. I bought some Chem ICE in Bluebird once that when 'Rosin'd' back home stunk and tasted of burning plastic. Not good at all.
I'd be marginally less worried about BHO than Jelly hash or QWISO - if it's from a trusted source. Mainly because making QWISO is quick and dirty, easily achieved with very basic equipment and not as immediately dangerous as blasting BHO. So it attracts a lazier extract 'artist'. That said - because of the comparatively high entry-point cost of BHO making equipment I've seen some SHITTY BHO in the UK that literally fizzes, pops and foams on the nail. I would never inhale that - ever.
Regarding 'safe' limits of residual solvents; I found this on http://www.dualdiagnosis.org/marijana-t ... -toxicity/
The residual butane content in BHO is somewhat regulated. Washington only allows for 500 parts per million while Colorado is much lower at 50 ppm.[13] Despite this, even BHO products in which extra effort and care were taken to remove excess butane, the residual amounts reached 50,000 ppm in one analysis — that’s two to five percent residual butane content.[14]
[13] http://www.dualdiagnosis.org/marijana-t ... #_ftnref13
[14] http://www.dualdiagnosis.org/marijana-t ... #_ftnref14
*edit* this is the bazilionth edit - but I figure it's worth being verbose in the interests of harm reduction and awareness.
Obviously I'm not going to say too much about my sources for BHO - suffice to say, the individual in question has a masters in bio-chemistry and a background in commercial hydro-carbon extractions. So I KNOW due care and attention has been taken with regard to purging of solvents. I'd recommend anyone buying concentrates of this nature be well prepared, well educated and assertive enough to question the supplier on the due diligence done by the extractor.
CLEANING POWER 
