Butane hash oil (BHO) extraction: Difference between revisions

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

This [[preparation]] is for the extraction of hash oil from [[cannabis]] using liquid butane (commonly referred to as ''B.H.O''). The aim of this extraction guide is to provide a simple and straight-forward procedure for the home user to produce a personal amount of high quality hash oil. This tek does however require the use of more advanced equipment such as a vacuum pump.

This [[preparation]] is for the extraction of hash oil from [[cannabis]] using liquid butane (commonly referred to as ''B.H.O''). The aim of this extraction guide is to provide a simple and straight-forward procedure for the home user to produce a personal amount of high-quality hash oil. This tek does, however, require the use of more advanced equipment such as a vacuum pump.

==Equipment==

* '''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 ~~economical~~ reasons. The yield is highly strain ~~dependent~~ but one can typically expect the end product to come out to around 15% by weight.

* '''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, but one can typically expect the end product to come out to around 15% by weight.

* '''Filtered butane''' - Butane is available in a variety of grades dependent on how many times it has been filtered. Generally speaking, the more times it has been filtered, the better, but at a certain point filtering something more times isn't going to make a qualitative difference so be mindful of diminishing returns! There's also 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.

* '''Extraction tube''' - Thick glass is highly recommended although plastic and other types will work reasonably well.

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* '''Pyrex or glass baking dish''' - This should have a large surface area

* '''Protective gloves and mask''' - To protect against the frozen tube and butane vapors

* '''Lower temp electric heat-source''' - Induction ~~cook-tops~~ are ideal, a hair ~~drier~~ or craft heat gun are also recommended. A hot water bath can also be used but avoid any open flame heat sources as butane is highly flammable and explosive!

* '''Lower temp electric heat source''' - Induction cooktops are ideal, a hair dryer or craft heat gun are also recommended. A hot water bath can also be used but avoid any open flame heat sources as butane is highly flammable and explosive!

* '''Fire extinguisher'''

* '''Parchment paper or slick mat'''

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==Procedure==

# Break up (not grind) your [[cannabis]] into small and loose pieces. This increases the surface area for the solvent and maximizes the amount of medication extracted.

# Pack your extraction tube in a firm manner. Be careful not to ~~over~~ pack the tube as the butane must be allowed to ~~freely~~ flow through the material by the force of gravity.

# Pack your extraction tube in a firm manner. Be careful not to pack the tube over as the butane must be allowed to flow through the material freely by the force of gravity.

# Cover the open end with two coffee filters and secure with rubber band or clamp.

# Freeze your filled tube in your freezer in an air-tight container (to prevent condensation) for a ''minimum of 2 hours''.

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# Begin pouring the butane into the tube from the small vent opening on one end. The butane should flow through the material to the bottom end and be collected into the pyrex dish. The tube will become very cold or frozen and near impossible to hold without heat-resistant gloves.

# Continue to pour the butane into the tube until it runs clear.

# At this point allow most of your solvent to evaporate from the dish in the well ventilated space. Agitate occasionally at a safe distance.

# At this point allow most of your solvent to evaporate from the dish in the well-ventilated space. Agitate occasionally at a safe distance.

# Once most of the solvent has evaporated, pour the oil onto a parchment or slick mat and place it into the vacuum.

# Turn on the vacuum and allow to reach full vacuum capacity which is typically around 29 in/hg at sea level. The oil will begin to bubble and muffin up as the trapped butane escapes the chamber.

# Turn on the vacuum and allow to reach full vacuum capacity which is typically around 29 in/Hg at sea level. The oil will begin to bubble and muffin up as the trapped butane escapes the chamber.

# Wait several hours for the muffin tops to fall and the bubbles to stop forming.

# Once activity has stopped place the chamber on the heat source and gently raise the temperature to 100-120 degrees. Be very careful not to add too much heat as this will burn off terpenes and darken the end product. Wait for any remaining bubbles to stop and remove it from the vacuum.

# Once the activity has stopped place the chamber on the heat source and gently raise the temperature to 100-120 degrees. Be very careful not to add too much heat as this will burn off terpenes and darken the end product. Wait for any remaining bubbles to stop and remove it from the vacuum.

# Carefully try to flip the oil and melt it into the thinnest layer possible. Again take care to ~~not~~ add too much heat or fold air into the product as this will add moisture and trap in ~~gases~~ which will affect the translucence and smoothness of the end product.

# Carefully try to flip the oil and melt it into the thinnest layer possible. Again take care not to add too much heat or fold air into the product as this will add moisture and trap in gasses which will affect the translucence and smoothness of the end product.

# Place the thin layer of oil back into the chamber at full vacuum. Leave on over night.

# Repeat the final five steps as many times as necessary to fully purge the oil of impurities.

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File:Packed Tube

File:Frozen Tube

File:Butane Evap

File: Butane Evap

File:Vacuum Chamber

File:Purge

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===Notes===

* Oil making is highly strain ~~dependent~~. A wide variety of different looking products can result from this tek and may range from 'shatter' (the highest grade) to 'crumble' to 'wax' or anywhere in between. High THC strains often tend to "sugar up" and is prized by many for the smoothness of its vaporized taste.

* Oil making is highly dependent on the strain. A wide variety of different looking products can result from this tek and may range from 'shatter' (the highest grade) to 'crumble' to 'wax' or anywhere in between. High THC strains often tend to "sugar up" and is prized by many for the smoothness of its vaporized taste.

* If you are looking to make a more crumble type product it is recommended to ~~repetitively~~ fold the oil into a tight ball and purge it over and over -- this will cause the oil to wax up, allowing bigger butane bubbles to form. The final purge of this oil will be with a blast of heat to let the large butane bubbles to pull ~~out~~ out of the oil. 'Warning': If this step is done improperly some butane may become trapped in the almost solidified oil.

* If you are looking to make a more crumble type product it is recommended to fold the oil into a tight ball and purge it repetitively over and over -- this will cause the oil to wax up, allowing bigger butane bubbles to form. The final purge of this oil will be with a blast of heat to let the large butane bubbles to pull out of the oil. 'Warning': If this step is done improperly, some butane may become trapped in the almost solidified oil.

* Be careful not to rip the coffee filter, especially when it is wet!

@@ Line 1: / Line 1: @@
 {{headerpanel|{{Template:Warning/BHO}} {{disclaimer}}}}
-This [[preparation]] is for the extraction of hash oil from [[cannabis]] using liquid butane (commonly referred to as ''B.H.O''). The aim of this extraction guide is to provide a simple and straight-forward procedure for the home user to produce a personal amount of high quality hash oil. This tek does however require the use of more advanced equipment such as a vacuum pump.
+This [[preparation]] is for the extraction of hash oil from [[cannabis]] using liquid butane (commonly referred to as ''B.H.O''). The aim of this extraction guide is to provide a simple and straight-forward procedure for the home user to produce a personal amount of high-quality hash oil. This tek does, however, require the use of more advanced equipment such as a vacuum pump.
 ==Equipment==
-* '''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 economical reasons. The yield is highly strain dependent but one can typically expect the end product to come out to around 15% by weight.
+* '''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, but one can typically expect the end product to come out to around 15% by weight.
 * '''Filtered butane''' - Butane is available in a variety of grades dependent on how many times it has been filtered. Generally speaking, the more times it has been filtered, the better, but at a certain point filtering something more times isn't going to make a qualitative difference so be mindful of diminishing returns! There's also 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.
 * '''Extraction tube''' - Thick glass is highly recommended although plastic and other types will work reasonably well.
@@ Line 10: / Line 10: @@
 * '''Pyrex or glass baking dish''' - This should have a large surface area
 * '''Protective gloves and mask''' - To protect against the frozen tube and butane vapors
-* '''Lower temp electric heat-source''' - Induction cook-tops are ideal, a hair drier or craft heat gun are also recommended. A hot water bath can also be used but avoid any open flame heat sources as butane is highly flammable and explosive!
+* '''Lower temp electric heat source''' - Induction cooktops are ideal, a hair dryer or craft heat gun are also recommended. A hot water bath can also be used but avoid any open flame heat sources as butane is highly flammable and explosive!
 * '''Fire extinguisher'''
 * '''Parchment paper or slick mat'''
@@ Line 16: / Line 16: @@
 ==Procedure==
 # Break up (not grind) your [[cannabis]] into small and loose pieces. This increases the surface area for the solvent and maximizes the amount of medication extracted.
-# Pack your extraction tube in a firm manner. Be careful not to over pack the tube as the butane must be allowed to freely flow through the material by the force of gravity.
+# Pack your extraction tube in a firm manner. Be careful not to pack the tube over as the butane must be allowed to flow through the material freely by the force of gravity.
 # Cover the open end with two coffee filters and secure with rubber band or clamp.
 # Freeze your filled tube in your freezer in an air-tight container (to prevent condensation) for a ''minimum of 2 hours''.
@@ Line 22: / Line 22: @@
 # Begin pouring the butane into the tube from the small vent opening on one end. The butane should flow through the material to the bottom end and be collected into the pyrex dish. The tube will become very cold or frozen and near impossible to hold without heat-resistant gloves.
 # Continue to pour the butane into the tube until it runs clear.
-# At this point allow most of your solvent to evaporate from the dish in the well ventilated space. Agitate occasionally at a safe distance.
+# At this point allow most of your solvent to evaporate from the dish in the well-ventilated space. Agitate occasionally at a safe distance.
 # Once most of the solvent has evaporated, pour the oil onto a parchment or slick mat and place it into the vacuum.
-# Turn on the vacuum and allow to reach full vacuum capacity which is typically around 29 in/hg at sea level. The oil will begin to bubble and muffin up as the trapped butane escapes the chamber.
+# Turn on the vacuum and allow to reach full vacuum capacity which is typically around 29 in/Hg at sea level. The oil will begin to bubble and muffin up as the trapped butane escapes the chamber.
 # Wait several hours for the muffin tops to fall and the bubbles to stop forming.
-# Once activity has stopped place the chamber on the heat source and gently raise the temperature to 100-120 degrees. Be very careful not to add too much heat as this will burn off terpenes and darken the end product. Wait for any remaining bubbles to stop and remove it from the vacuum.
+# Once the activity has stopped place the chamber on the heat source and gently raise the temperature to 100-120 degrees. Be very careful not to add too much heat as this will burn off terpenes and darken the end product. Wait for any remaining bubbles to stop and remove it from the vacuum.
-# Carefully try to flip the oil and melt it into the thinnest layer possible. Again take care to not add too much heat or fold air into the product as this will add moisture and trap in gases which will affect the translucence and smoothness of the end product.
+# Carefully try to flip the oil and melt it into the thinnest layer possible. Again take care not to add too much heat or fold air into the product as this will add moisture and trap in gasses which will affect the translucence and smoothness of the end product.
 # Place the thin layer of oil back into the chamber at full vacuum. Leave on over night.
 # Repeat the final five steps as many times as necessary to fully purge the oil of impurities.
@@ Line 36: / Line 36: @@
 File:Packed Tube
 File:Frozen Tube
-File:Butane Evap
+File:  Butane Evap
 File:Vacuum Chamber
 File:Purge
@@ Line 45: / Line 45: @@
 ===Notes===
-* Oil making is highly strain dependent. A wide variety of different looking products can result from this tek and may range from 'shatter' (the highest grade) to 'crumble' to 'wax' or anywhere in between. High THC strains often tend to "sugar up" and is prized by many for the smoothness of its vaporized taste.
+* Oil making is highly dependent on the strain. A wide variety of different looking products can result from this tek and may range from 'shatter' (the highest grade) to 'crumble' to 'wax' or anywhere in between. High THC strains often tend to "sugar up" and is prized by many for the smoothness of its vaporized taste.
-* If you are looking to make a more crumble type product it is recommended to repetitively fold the oil into a tight ball and purge it over and over -- this will cause the oil to wax up, allowing bigger butane bubbles to form. The final purge of this oil will be with a blast of heat to let  the large butane bubbles to pull out out of the oil. 'Warning': If this step is done improperly some butane may become trapped in the almost solidified oil.
+* If you are looking to make a more crumble type product it is recommended to fold the oil into a tight ball and purge it repetitively over and over -- this will cause the oil to wax up, allowing bigger butane bubbles to form. The final purge of this oil will be with a blast of heat to let the large butane bubbles to pull out of the oil. 'Warning': If this step is done improperly, some butane may become trapped in the almost solidified oil.
 * Be careful not to rip the coffee filter, especially when it is wet!