Originally Posted by TheNewGuy2012
I've seen this information on a few different websites recently. i personally am not too convinced in the current finding. I've seen one test where a guy soaked the paper in butane but then muddied up his findings by some how having paper bits
left behind in the petri dish, when he started out with a solid piece.... how does that even happen? i would like to see something done where the parchment is rolled like a straw or small tube and the butane had to run completely threw it, almost like an extractor tube. maybe i should just cram my extractor with parchment and have a go at it
i am also curious about the dissolving factor, i've read the reaction on the rubber was swelling... i guess the jury is still out on the spray.
here is something i find rather interesting, these new "oil slick" silicone mat's people are using to spray on as a replacement to parchment. they are claiming it's "surgical grade" silicone but it's still silicone regardless. may be safe for internal human use, but there isn't butane to react with the material inside a human body. second point i would like to make about these mats, is the fact that regardless of the grade, silicone still "reacts" so what is the difference? The other new replacement is teflon... ptfe or pfoa, both have countless articles online about teflon & the poisonous vapors associated with heating it. there are even articles about removing it from all cookware by 2015. Cooking with aluminum foil has been linked Alzheimer's so the stuff we use everyday isn't always "food safe" & i don't really doubt the speculation of something going on with the paper.
I don't claim to be a medical purist of any sort... definitely a recreational user. as for passing this method onto others, I AM a bit concerned for people following my method. I wouldn't want to pass on info that could harm others (myself, i'm not too worried about)... but if safety or "purity" is a concern, my suggestion is simply stick to 100% glass. Glass is known to be as inert as it gets right up to the melting point
I appreciate you bringing it up... the topic has been popping up left and right lately.
parchment paper contains quilon, a lubricant and release agent.
and just to be the devils advocate, pyrex dishes can be scratched by razorblades...i know mine has super fine scratches all over it. dabbing borosilicate? that is ALSO something i have seen discussed.
the thing about oilslick new pads is the USP6 silicone. yes its used for implants n shit, but what is relevant here is that it has been leached of siloxanes that are residual from the manufacture of silicone rubbers.
from a whitepaper about usp6 silicone
The main sources of extractables in silicone rubber are low molecular weight siloxane molecules. These siloxane molecules
come from impurities within the raw materials used in the silicone rubber manufacturing process. In theory all of the
extractables can be removed from silicone rubber using a non-polar organic solvent such as hexane at its boiling temperature.
if you read up on how USP6 silicone is made, they actually use hexane to drive out the siloxanes. thats a pretty gnarly non-polar solvent.
USP6 is what they make Tygon out of. for biotech and pharm lab use.
then there is teflon. good rating w non-polars, scratches easily, could contaminate oil and prolly not cool to heat on my griddle over a few hundred degrees since it kills birds and all that shit you mentioned. the beaker liners i tried tore apart right out of the gate.