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Build a cold trap!

FatherEarth

Active member
Veteran
nice!
Thanks, Im definitely going to make one of these, ....that is if AI doesnt have a reasonable sticker price...
 

SkyHighLer

Got me a stone bad Mana
ICMag Donor
Veteran
Going beyond a simple cold trap with a a rotary evaporator combined with a peristaltic pump,

http://www.cookingissues.com/primers/rotovap/

"Peristaltic Pump: Traditional rotovaps catch the distillate in a receiving flask. As we said before, this is a flavor killer. We decided to remove the flask entirely and replace it with a peristaltic pump that pumps out the distillate as it is formed. The unadulterated distillate then flows through a tube into a receiving flask/bottle, external to the pressurized system. Originally, we installed the peristaltic pump to a non-cooled adapter. We have since built a chilled aluminum adapter and the flavor is even better."
 

nakadashi

Member
Going beyond a simple cold trap with a a rotary evaporator combined with a peristaltic pump,

http://www.cookingissues.com/primers/rotovap/

"Peristaltic Pump: Traditional rotovaps catch the distillate in a receiving flask. As we said before, this is a flavor killer. We decided to remove the flask entirely and replace it with a peristaltic pump that pumps out the distillate as it is formed. The unadulterated distillate then flows through a tube into a receiving flask/bottle, external to the pressurized system. Originally, we installed the peristaltic pump to a non-cooled adapter. We have since built a chilled aluminum adapter and the flavor is even better."
Will peristaltic pump be able to handle THC though? Especially if the feed adapter is actively chilled I can see that causing problems for our application. These guys seem to be using it it with low BP distillates.

I love the equipment these guys use lol, that ghettovap is pretty LEGIT.
 

SkyHighLer

Got me a stone bad Mana
ICMag Donor
Veteran
Will peristaltic pump be able to handle THC though? Especially if the feed adapter is actively chilled I can see that causing problems for our application. These guys seem to be using it it with low BP distillates.

I love the equipment these guys use lol, that ghettovap is pretty LEGIT.

The way I was imagining it you'd boil off your ethanol from winterization in the modified rotovap, pulling off nearly all the ethanol with the light essences. A little ethanol remains with the oil to facilitate pouring. If you used an unmodified rotovap the light essences would have been drawn out to atmosphere through the vacuum pump. The flask with the ethanol and light essences can then be rotovap'd at various temperatures and degrees of vacuum to best isolate the desired essences for recombination. Or, how to turn a trim run into something similar to a nugg run.
 

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