BHO Vacuum Purge Kit

Alchimia Grow Shop 04-04-2017

Hi Rob,

Basically, you have two options. Amateurs normally use a kit like the one on this page, a vacuum pump and a vacuum chamber. Since some heat is needed during the purging process, people normally use a heating plate to maintain a constant temperature inside the chamber. The largest vacuum chamber we have is 25cm in diameter.

Professionals started with these kits but soon began to use vacuum ovens. Vacuum ovens allow to purge much more material and are much more accurate than heating plates and vacuum chambers (notice that we have different oven models: 25L, 55L and 90L). These ovens need to be connected to a vacuum pump to operate properly.

Without a doubt, an oven is the best option if BHO capacity and time are a priority.

Hope it helped!

Alchimia Grow Shop 28-10-2016

Hi Anthony,

Butane is the solvent used to extract trichomes from cannabis and get BHO. Any concentrate made with solvents (butane, alohol, propane, etc) must be properly purged to remove any trace of solvent in the extract and thus be safe for your health.

Basically, you have to extract the resin with the solvent, put the extract in bain marie (40-50ºC) to perform a first purge and then put it in the vacuum chamber and connect the pump. The pump will force the solvent out of the extract and the chamber, leaving your extract clean. Normally, heating plates are used to heat the chamber at around 40ºC and thus facilitate the process.

In this post about how to purge BHO you have several ways to do it.

Please leave here any further doubt or comment, I'll be pleased to reply it.

Hope it helped!