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For all who contacted wavegem for closed loops... I sell 150g to a little under 5lb models based on GW's design for a LOT cheaper. Hit me up and I can provide pics, pricing, etc
Things are taking a little longer than expected as usual. I am doing everything around here, sometimes it wears you down. These units cost me around 3000 dollars for everything to make, that includes pumps, tanks, hoses, gauges, can tap, butane. They will probably retail around 5,000 if done legit.
If you are processing a gram, I can see 30 minutes. Fill up all the racks with as thin as you can get it, I can guarantee that it's not done in 30 minutes. At 115 you fried a ton of terpenes. I feel like you are withholding information.
@cap I've lurked but been really good :) how about you?? :) I've definitely upgraded from the Tami days!
@wave GW has many great and amazing contributions, unfortunately purging has never been one of them. I can understand 110-115 for production work where you need to cut down on purge times, but you sacrifice terps in the process. 95-105 is a better route. low and slow. Plus, you really need a high cfm 2 stage pump. not because you need the cfm's, but because those are the pumps that can pull a deeper vac. The way I see it, people who purge high make my product shine that much more!
I came up with 115F by pulling a vacuum on a thin film and heating it up until the solvent bubbles readily escaped, and then measured the temperature with a heat gun. About 115F was where they freely escaped
That experiment showed that at 115F, the solvent is gone in the minimum period of time, preserving more terpenes than running it cooler and longer. It smells like what it was extracted from and my pump oil doesn't smell stronger than my product.
I've never run an oven full, with every rack packed, but have done any number of purges just like I described, including in class in front of 30 or so witnesses, who all sniff the results, so not sure what you think I'm withholding.
What I will say is that processing it past the point that the solvent is extracted, and turning it into wax instead of shatter, takes considerably longer than 30 minutes, especially since it isn't done in thin films.
It would be nice if there was more testing in this area as so much is subjective. Who came up with the chart? I use to use smaller pumps per your recommendations, but visually/smell test wise, lower and longer seemed better. I wonder what has the least damage.... lower/longer or hotter/shorter? maybe in the end it doesn't matter?