Thc boiling point under vacuum

Fadedawg

Fadedawg

Well-Known Member
DemonTrich said:
No, but your Terps may be long gone now.
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The lighter terpenes do have high vapor pressures even below their boiling points and of course time at temperature and vacuum is the third variable.

I typically raise the temperature of a BHO extract until it is just fully liquid, which is typically around 110/115F. At that temperature, the solvent bubbles can more readily escape, so the time element is reduced.

I also typically start with cotton candy, which only takes about four hours at that temperature and 10,000 microns/-29.5" Hg, to get below 10% of the FDA's maximum residual solvent standard.

Cotton candy is made by inflating the concentrate into foam and drying it under vacuum in that condition. It works well because a bubble is the thinnest possible film for purging, and reduces how much has to be removed later.
 
710slickxx

710slickxx

Well-Known Member
Fadedawg said:
The lighter terpenes do have high vapor pressures even below their boiling points and of course time at temperature and vacuum is the third variable.

I typically raise the temperature of a BHO extract until it is just fully liquid, which is typically around 110/115F. At that temperature, the solvent bubbles can more readily escape, so the time element is reduced.

I also typically start with cotton candy, which only takes about four hours at that temperature and 10,000 microns/-29.5" Hg, to get below 10% of the FDA's maximum residual solvent standard.

Cotton candy is made by inflating the concentrate into foam and drying it under vacuum in that condition. It works well because a bubble is the thinnest possible film for purging, and reduces how much has to be removed later.
Click to expand...
And thank your sir!
 
Cream/City/Crumble

Cream/City/Crumble

Well-Known Member
REMEMBER to take your elevation into account!!!! Temperatures vary depending on the elevation of your residence.
Higher elevations require less heat.
For example; in Denver (elevation 5,280ft), water boils at approximately 212°F, while in Milwaukee (elevation 540ft), water boils at approximately 221°.
Remember to Take that into consideration when getting advice on your purge temps.
That being said, heat kills your terps, and also heat causes your concentrates to become darker in color. To keep that beautiful yellow - orangish color keep your temps as low as possible. That goes for the whole process. When i do my initial purge in the water bath, i use a thermometer to make sure the water isnt more than 90°.
At my elevation (540ft) i purge my shatter between 105°-107°, and its BURSTING with flavor!!! I purge my crumble and Budder between 95°-98°.
Keeping it cold, keeps it delicious!!!
 
Vegs

Vegs

Well-Known Member
I use 95F on all my wax/shatter purges to make it as simple as possible without destroying flavor at 5200+ feet however it takes a little longer than others (24-28 hours).
 
Fadedawg

Fadedawg

Well-Known Member
Cream/City/Crumble said:
REMEMBER to take your elevation into account!!!! Temperatures vary depending on the elevation of your residence.
Higher elevations require less heat.
For example; in Denver (elevation 5,280ft), water boils at approximately 212°F, while in Milwaukee (elevation 540ft), water boils at approximately 221°.
Remember to Take that into consideration when getting advice on your purge temps.
That being said, heat kills your terps, and also heat causes your concentrates to become darker in color. To keep that beautiful yellow - orangish color keep your temps as low as possible. That goes for the whole process. When i do my initial purge in the water bath, i use a thermometer to make sure the water isnt more than 90°.
At my elevation (540ft) i purge my shatter between 105°-107°, and its BURSTING with flavor!!! I purge my crumble and Budder between 95°-98°.
Keeping it cold, keeps it delicious!!!
Click to expand...
 

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