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Sawney Bean

BHO how much butane to use

22 posts in this topic

How many tins of gas roughly would you need for a 1ltr thermos flask?

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if 1 litre is the volume of trim your going to process id estimate at least 6
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Cool man thanks for that DaYone

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Depends on size of tin, they will have ml on can, 1000ml in a litre. Obviously the trim will take up some area also and best not to fill completely so say 500-600ml. Big Londons are 300ml, smaller from PL.

Be careful well ventilated area preferably outdoors.

EF
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[quote name='Elephant Face' timestamp='1351419650' post='3324382']
Depends on size of tin, they will have ml on can, 1000ml in a litre. Obviously the trim will take up some area also and best not to fill completely so say 500-600ml. Big Londons are 300ml, smaller from PL.

Be careful well ventilated area preferably outdoors.

EF
[/quote]


Aye thanks bro, I've got a mix of big London Gas and smaller Newport tins. Used to always use a cafitiere for BHO and could always see how full it got. Unfortunately I smashed my one looking it out this morning :headpain: Little does the wife know, I'm using her thermos for BHO from now on :rofl:
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I guess it depends if its a spray or soaking method used.Assuming the 1 litre thermos flask is full of plant matter and your using the 250ml newport variety you could use up to 4 cans to fill the flask and soak all plant matter,a passive spray could use 2-6 cans

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[quote name='Sawney Bean' timestamp='1351419879' post='3324384']
[quote name='Elephant Face' timestamp='1351419650' post='3324382']
Depends on size of tin, they will have ml on can, 1000ml in a litre. Obviously the trim will take up some area also and best not to fill completely so say 500-600ml. Big Londons are 300ml, smaller from PL.

Be careful well ventilated area preferably outdoors.

EF
[/quote]


Aye thanks bro, I've got a mix of big London Gas and smaller Newport tins. Used to always use a cafitiere for BHO and could always see how full it got. Unfortunately I smashed my one looking it out this morning :headpain: Little does the wife know, I'm using her thermos for BHO from now on :rofl:
[/quote]

Just have the odd peek inside once you think its getting full, give it a tap thou as trim seems to blast onto lid so when you open it spills a little.

Why a good inch wan and not just above trim level?

EF

Just to add if your misses thermos has one of those inner lids you can press button and pour thru that works well for a first filter before coffee filter or whatever, also makes pouring easier imo. I use outer lid to cut holes for butane adaptor. Edited by Elephant Face
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just to add that it is possible to get stainless steel double-walled cafetieres, very handy, I put some pics of mine in action on the main BHO thread. It's 1.5 litres i think, and half-full of trim etc you need four cans really to cover it properly, and I'd agree that you do need to see the liquid covering the bud by 1 or 2 cm to feel sure it's dissolving all it can. Then I evaporate in a glass bowl over a large pan of warm water. I do the whole thing outdoors and I can't really imaagine a safe way of doing it indoors. Butane is heavier than air and it will collect in pockets of pure butane gas under floorboards etc waiting for a spark to blow you through the roof... 300ml of liquefied butane in a can will expand into about 75 litres of gas when it's evaporated. Four cans of liquid butane makes about 65 gallons of gas, imagine 65 gallons of water spilling in your house, where would it go? That's where the explosive gas will end up. Edited by Ishmael
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Good advise there Ef on the pouring bit on the thermos, it's got a wee button on top to press, cheers man :guitar:

Ishmael your absolutely right about stressing the safety involved when making this
stuff. I've seen a few horrors on the web of when it's gone wrong, serious shit.

Remember people SAFETY SAFETY SAFETY!! :yinyang:
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I hesitate to say this in case some f***** blows themself up but I always do mine indoors next to a open window . Yes the butane is heavier than air but it disperses quickly as it mixes with air. Although I do have a solid floor so there is no chance of it going through floorboards. Also I make sure there are no electrical devices switched on or likely to come on eg a boiler. I like living dangerously :) but as they say on the tele , "don't do this at home kids" :rofl:
Eta , I only use one can at at a time as well and let that disperse...
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[quote name='Wan' timestamp='1351423411' post='3324486']
I find sometimes if i dont fill an inch above the trim then by time the 10 min soak is done it has evaporated to a level under the the level of the material. it depends how well insulated the vessel is and what the ambient temps of the area ur soaking in are i suppose but its good general advice without knowing all the environment details imo.
[/quote]

Fair enough, my vessel is a thermos flask with both lids on when brewing so super sealed.
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Well luckily I'm able to do my runs outside in the back garden with the shed door as cover from prying eyes. Got my first run soaking now, used 3 tins of london gas to fill the thermos, 2 large cans and one smaller can.

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i'd think twice about sealing a flask with a few tins of butane in :fear:
and for those with prying eyes, a cardboard box that can be moved outside with it all in , is a help.
Doesn't work in windy / rainy weather though so timings a pain..
i fill my bodum half with trim, cover it with butane , put it in the box then move it outside. 15 mins or so later bring it in to a safe kitchen, press & pour into the filter over a bowl ( in the box ) - then carefully take it outside.
i check to see it's all gone through by opening the box lid a few times .
Then it's back in , to where freshly boiled water is sat in a bigger bowl , carefully into the box and back outside to finish off. :stoned: Edited by Tremont
/
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[quote name='Elephant Face' timestamp='1351424806' post='3324536']
[quote name='Wan' timestamp='1351423411' post='3324486']
I find sometimes if i dont fill an inch above the trim then by time the 10 min soak is done it has evaporated to a level under the the level of the material. it depends how well insulated the vessel is and what the ambient temps of the area ur soaking in are i suppose but its good general advice without knowing all the environment details imo.
[/quote]

Fair enough, my vessel is a thermos flask with both lids on when brewing so super sealed.
[/quote]

We cover the material in the thermos about an inch or so too and use 30 minutes for the first pull.

Please don't seal the thermos, it makes it a bomb as it warms up. Edited by Graywolf
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Am I right in saying that putting the BHO in and out the freezer does NOT purge the butane out it? Ho am I gonna purge the stuff I made, I dont have a vac or owt, Am I safe enough just to smoke it as it is?

e2a: and at the curved sides of the glass dish I used, how do I scrape up the bho from there, can I put some Iso in the dish and swill it round, if so how to I evaporate the iso safely? Edited by Sawney Bean

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