Butane hash oil (BHO) extraction: Difference between revisions

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{{headerpanel|{{Template:Warning/BHO}}{{disclaimer}}}}

This is a [[~~preparation~~|tutorial]] for the extraction of ~~''hash oil''~~ from [[cannabis]] plant material using liquid butane as a solvent (commonly referred to as '''Butane Hash Oil''' or '''B.H.O''').

This is a [[tutorial index|tutorial]] for the extraction of a resin from [[cannabis]] plant material using liquid butane as a solvent (commonly referred to as '''Butane Hash Oil''', '''Butane Honey Oil''', or '''B.H.O.'''). It is a highly concentrated form of cannabis extracts containing many of its cannabinoids and terpenes.

Before starting, readers should be aware that performing this type of extraction indoors is considered to be inherently dangerous due to the unpredictable flammable and explosive natures of the materials involved, many of which can lead to property damage, serious bodily injury, or death.

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==Equipment==

[[File:Flammable Gas.gif|225px|thumb|right|Butane gas is highly flammable.]]

* '''~~Ground~~ [[~~cannabis~~]]''' - You can make batches with as little material as you like although it is recommended that at least a half ounce be used for technical and economic reasons. The yield is highly dependent on the strain, batch and overall quality of the material.

* '''[[Cannabis]]''' - You can make batches with as little material as you like although it is recommended that at least a half ounce be used for technical and economic reasons. The yield is highly dependent on the strain, batch and overall quality of the material. Good, dried, fresh and uncrushed bud makes the best butane hash oil. Grind them up and do a second extraction to get a lower grade of oil.

* '''Filtered butane''' - Butane is available in a variety of grades depending on how many times it has been filtered for impurities. Generally speaking, the more times it has been filtered, the better the quality, but after a certain threshold filtering something additionally is not going to have a detectable difference during the procedure, so be mindful of diminishing returns! ~~There also exists n~~-butane ~~and other blended gas solvents of various kinds. These are~~ typically ~~much~~ more expensive ~~but are~~ thought to increase the quality of the end product. '''All gaseous or liquid butane solvents are highly flammable.'''

* '''Filtered butane''' - Butane is available in a variety of grades depending on how many times it has been filtered for impurities. Generally speaking, the more times it has been filtered, the better the quality, but after a certain threshold filtering something additionally is not going to have a detectable difference during the procedure, so be mindful of diminishing returns! 4X has so far proven to be a purity from which no significant quality increase can be expected. N-butane is preferable to Isobutane but typically more expensive and difficult to find available in stores. It is thought to increase the quality of the end product. You will need at least 8 oz of butane for every 1 oz of plant material. There also exist various other solvents that can be used. '''All gaseous or liquid butane solvents are highly flammable.'''

* '''Extraction tube''' - ~~Thick~~ glass is recommended due to the lower likelihood of chemical leeching and the formation of byproducts associated with the use plastic equipment. Thick glass can also handle the freezing/heating cycles present in this extraction better than other materials.

**'''Mirror Test''' - To test butane of unknown quality, take a mirror or piece of glass and spray a good amount of liquid butane onto it. (You may need some pliers to press the nozzle in) Wait about 5-10 mins for the butane to evaporate and check the mirror for a white residue. Don't confuse water condensation for residue. Many will leave a slight residue, check for Smell. Should your residue smell bad, don't use it.

* '''Extraction tube''' - thick glass or stainless steel is recommended due to the lower likelihood of chemical leeching and the formation of byproducts associated with the use plastic, brass and galvanized steel equipment. Thick glass can also handle the freezing/heating cycles present in this extraction better than other materials.

* '''Vacuum chamber and pump''' - A single stage vacuum pump is sufficient. Be wary of shorter chambers as the oil might bubble high enough to touch the lid.

[[File:Vacpump.jpg|200px|thumb|right|A two gallon vacuum chamber and pump apparatus.]]

* '''Coffee filter and rubber band or hose clamp'''

* '''Pyrex baking dish''' - This should have a large surface area to increase the evaporation rate of the solvent once it has been poured into it.

* '''Protective gloves and mask''' - This is needed to protect against the frozen tube and butane vapors, both of which can cause lasting bodily harm - '''Wearing the proper safety equipment is imperative for properly performing a B.H.O. extraction'''.

* '''Protective gloves, eyewear and mask''' - This is needed to protect against the frozen tube and butane vapors, both of which can cause lasting bodily harm - '''Wearing the proper safety equipment is imperative for properly performing a B.H.O. extraction'''.

* '''Heat source''' - Avoid any open flame heat sources and heat sources that can cause flammable sparks as '''butane is unpredictable, highly flammable and explosive!''' An induction hot plate is a viable heat source option, as is any non-sparking, flame proof electrical heater or a simple water bath. If using a hot water bath, make sure to monitor the temperature and set it up over an induction heat source that does not have a pilot light.

* '''Fire extinguisher''' - This can make the difference between life and death if a fire or explosion occurs. Always have a fire extinguisher or fire blanket on hand in case of fire. It is important to check the operability of the fire extinguisher by examining it or refilling it at least once an hour to ensure that it will work during an explosive event.

@@ Line 1: / Line 1: @@
 {{headerpanel|{{Template:Warning/BHO}}{{disclaimer}}}}
-This is a [[preparation|tutorial]] for the extraction of ''hash oil'' from [[cannabis]] plant material using liquid butane as a solvent (commonly referred to as '''Butane Hash Oil''' or '''B.H.O''').
+This is a [[tutorial index|tutorial]] for the extraction of a resin from [[cannabis]] plant material using liquid butane as a solvent (commonly referred to as '''Butane Hash Oil''', '''Butane Honey Oil''', or '''B.H.O.'''). It is a highly concentrated form of cannabis extracts containing many of its cannabinoids and terpenes.
 Before starting, readers should be aware that performing this type of extraction indoors is considered to be inherently dangerous due to the unpredictable flammable and explosive natures of the materials involved, many of which can lead to property damage, serious bodily injury, or death.
@@ Line 48: / Line 48: @@
 ==Equipment==
 [[File:Flammable Gas.gif|225px|thumb|right|Butane gas is highly flammable.]]
-* '''Ground [[cannabis]]''' - You can make batches with as little material as you like although it is recommended that at least a half ounce be used for technical and economic reasons. The yield is highly dependent on the strain, batch and overall quality of the material.
+* '''[[Cannabis]]''' - You can make batches with as little material as you like although it is recommended that at least a half ounce be used for technical and economic reasons. The yield is highly dependent on the strain, batch and overall quality of the material. Good, dried, fresh and uncrushed bud makes the best butane hash oil. Grind them up and do a second extraction to get a lower grade of oil.
-* '''Filtered butane''' - Butane is available in a variety of grades depending on how many times it has been filtered for impurities. Generally speaking, the more times it has been filtered, the better the quality, but after a certain threshold filtering something additionally is not going to have a detectable difference during the procedure, so be mindful of diminishing returns! There also exists n-butane and other blended gas solvents of various kinds. These are typically much more expensive but are thought to increase the quality of the end product. '''All gaseous or liquid butane solvents are highly flammable.'''
+* '''Filtered butane''' - Butane is available in a variety of grades depending on how many times it has been filtered for impurities. Generally speaking, the more times it has been filtered, the better the quality, but after a certain threshold filtering something additionally is not going to have a detectable difference during the procedure, so be mindful of diminishing returns! 4X has so far proven to be a purity from which no significant quality increase can be expected. N-butane is preferable to Isobutane but typically more expensive and difficult to find available in stores. It is thought to increase the quality of the end product. You will need at least 8&nbsp;oz of butane for every 1&nbsp;oz of plant material. There also exist various other solvents that can be used. '''All gaseous or liquid butane solvents are highly flammable.'''
-* '''Extraction tube''' - Thick glass is recommended due to the lower likelihood of chemical leeching and the formation of byproducts associated with the use plastic equipment. Thick glass can also handle the freezing/heating cycles present in this extraction better than other materials.
+**'''Mirror Test''' - To test butane of unknown quality, take a mirror or piece of glass and spray a good amount of liquid butane onto it. (You may need some pliers to press the nozzle in) Wait about 5-10&nbsp;mins for the butane to evaporate and check the mirror for a white residue. Don't confuse water condensation for residue. Many will leave a slight residue, check for Smell. Should your residue smell bad, don't use it.
+* '''Extraction tube''' - thick glass or stainless steel is recommended due to the lower likelihood of chemical leeching and the formation of byproducts associated with the use plastic, brass and galvanized steel equipment. Thick glass can also handle the freezing/heating cycles present in this extraction better than other materials.
 * '''Vacuum chamber and pump''' - A single stage vacuum pump is sufficient. Be wary of shorter chambers as the oil might bubble high enough to touch the lid.
 [[File:Vacpump.jpg|200px|thumb|right|A two gallon vacuum chamber and pump apparatus.]]
 * '''Coffee filter and rubber band or hose clamp'''
 * '''Pyrex baking dish''' - This should have a large surface area to increase the evaporation rate of the solvent once it has been poured into it.
-* '''Protective gloves and mask''' - This is needed to protect against the frozen tube and butane vapors, both of which can cause lasting bodily harm - '''Wearing the proper safety equipment is imperative for properly performing a B.H.O. extraction'''.
+* '''Protective gloves, eyewear and mask''' - This is needed to protect against the frozen tube and butane vapors, both of which can cause lasting bodily harm - '''Wearing the proper safety equipment is imperative for properly performing a B.H.O. extraction'''.
 * '''Heat source''' - Avoid any open flame heat sources and heat sources that can cause flammable sparks as '''butane is unpredictable, highly flammable and explosive!''' An induction hot plate is a viable heat source option, as is any non-sparking, flame proof electrical heater or a simple water bath. If using a hot water bath, make sure to monitor the temperature and set it up over an induction heat source that does not have a pilot light.
 * '''Fire extinguisher''' - This can make the difference between life and death if a fire or explosion occurs. Always have a fire extinguisher or fire blanket on hand in case of fire. It is important to check the operability of the fire extinguisher by examining it or refilling it at least once an hour to ensure that it will work during an explosive event.