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Sorry for intruding on your thread gwerns.
I'm not sure if the pictures and instructions are yours or if you copied them, I assumed you were looking for a discussion on BHOE. Normally I'd just leave with my apology, but ....
There are two critical errors in the extraction process shown that will cause death and/or a long visit to the intensive care unit before going to prison; and a third error that will just attack your organs over time. I think this is information that everyone reading the thread should know, including yourself.
1. Death and/or ICU
Never, ever, for any reason, extract indoors. Butane is heavier than air and will sink, even with an open window and a fan you WILL get butane pools. Electrical outlets, appliances, the fridge might turn on, the heating system. Outdoors only, no garage, no barn, no doghouse. Remember the guys who blew the doors off their garage a couple months back?
http://www.edmontonjournal.com/news/Edmonton+police+investigate+southwest+garage+explosion/2429206/story.html
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2. Death. If you stop at the ICU for a bit you'll probably just wish for death.
a:
Never, ever, for any reason, boil off butane indoors.
b:
Never, ever, for any reason, boil off butane with a heat source (the burner) that can reach butanes flash point (788F) or has has a flame.
Most burners won't reach 788 but I've seen red hot sparks when moving pans around the burner which would ignite butane gas. Not worth it. Even if you're using a double boiler, the butane as a gas is going to sink in air because it's heavier. Below the double boiler is the burner or flame. Use a tub of hot water - outdoors.
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Keep on a low heat and turn on your fan now to keep the area well ventillated!" - very dangerous advice.
Is that is a flame stove?
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3. Organ damage.
Butane leaches chemicals out of PVC over time. PVC was not designed for BHOE. PVC contains a host of dangerous chemicals as well as lead, cadmium and other heavy metals - which will stay in your body and build up over time.
Heavy Metal Toxicity:
http://www.diagnose-me.com/cond/C15891.html
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"[FONT=Arial,verdana]
Does PVC pipe contain hazardous chemicals?[/FONT]
[FONT=Arial,verdana]
The concerns about hazardous chemicals in PVC centre on the use of heavy metal stabilisers (typically Cadmium and Lead) and plasticisers in flexible PVC products (such as phthalates). There are many reports that question the level of concern with respect to these chemicals in PVC."[/FONT]
"[FONT=Arial,verdana]
Should I be concerned about VCM?[/FONT]
[FONT=Arial,verdana]
Consumers are not at risk from exposure to VCM. VCM is only present in the polymer raw material stage.[/FONT]
[FONT=Arial,verdana]
VCM is known to cause a rare form of liver cancer after prolonged high level exposure. The only known deaths as a consequence of contact with VCM have occurred to people involved in the manufacture of PVC. [/FONT]"
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You are using a non polar super critical solvent on these pipes. They will leach those chemicals and heavy metals into your honey oil, a little at a time, so you'd never notice until you've reached toxic build up.
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gwerns you made beautiful oil but eventually you're going to get blow'd up real good if you don't change your process from what's shown in the pictures.
Best of luck, BHOE kicks making cannabutter's ass, so many uses for the resin. I've made corn syrup candies that are unreal, highly recommend it. When I want brownies from my Volcano dregs I do a BHOE and have amazing tasty brownies. A great process.
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https://www.rollitup.org/cooking-cannabis/300312-bhoe-comparrison-honey-bee-vs.html
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