Butane hash oil (BHO) extraction: Difference between revisions

>Fishcenternicole
m added vac pump picture
>Fishcenternicole
added more to procedure - need to do more research on adequate temperatures for each stage of the process
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* '''Pyrex or glass baking dish''' - This should have a large surface area to increase the evaporation rate of the solvent.  
* '''Pyrex or glass baking dish''' - This should have a large surface area to increase the evaporation rate of the solvent.  
* '''Protective gloves and mask''' - This is needed to protect against the frozen tube and butane vapors, both of which can cause bodily harm - '''Wearing the proper safety equipment is imperative for properly performing a B.H.O. extraction'''.
* '''Protective gloves and mask''' - This is needed to protect against the frozen tube and butane vapors, both of which can cause bodily harm - '''Wearing the proper safety equipment is imperative for properly performing a B.H.O. extraction'''.
* '''Lower temperature electric 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.  
* '''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.
* '''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.  
* '''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.  
* '''Parchment paper or slick mat'''  
* '''Parchment paper or slick mat'''  
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# Begin pouring the butane into the tube filled with [[cannabis]] 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. Due to the expansion of the liquid butane into gaseous butane, there will be a temperature drop within the tube. The tube will become very cold or frozen and impossible to hold without heat-resistant gloves or test tube tongs meant for extreme temperatures.   
# Begin pouring the butane into the tube filled with [[cannabis]] 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. Due to the expansion of the liquid butane into gaseous butane, there will be a temperature drop within the tube. The tube will become very cold or frozen and impossible to hold without heat-resistant gloves or test tube tongs meant for extreme temperatures.   
# Continue to pour the butane into the tube until the exiting butane lacks color and runs clear.
# Continue to pour the butane into the tube until the exiting butane lacks color and runs clear.
# At this point allow most of your solvent to evaporate from the dish in the well-ventilated space free from mechanical or electrical sparks. Agitate occasionally at a safe distance.  
# At this point allow most of your solvent to evaporate from the dish in the well-ventilated space free from mechanical or electrical sparks. Agitate occasionally at a safe distance. If using a hot water bath to aid in evaporation, monitor the temperature of the bath to keep it below boiling yet warm enough to aid in evaporation.  


===Final Steps===
===Final Steps===
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# 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 extract into 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 extract into the chamber.  
# Wait several hours for the muffin tops to fall and the bubbles to stop forming. This activity signals that butane is exiting the B.H.O. as intended.
# Wait several hours for the muffin tops to fall and the bubbles to stop forming. This activity signals that butane is exiting the B.H.O. as intended.
# 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.
# Once the activity has stopped place the chamber on the heat source and gently raise the temperature to 100-120 degrees Farenheit. 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 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.
# 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 overnight.  
# Place the thin layer of oil back into the chamber at full vacuum. Leave on overnight.