New to the forum world

[DankDabs420]

Hey everyone! I've been lurking for a while, but decided it was finally time to get involved and say hi!

As you can all probably tell from my username, I'm intrigued by the various methods of extraction and look forward to learning even more from the community! I've only tried BHO extraction so far, but after hours of research I'm considering a QWET for my next run. Any tips or recommendations?

 

[MikeGanja]

Hi DankDabs420,
Welcome to RIU!


I have tried QWET and I think it works well. There are many variations of the method, I can recommend this tecnnique: www.skunkpharmresearch.com/qwet-extraction/

Here is a new thread on QWET here on RIU, I am not sure which one that is better than the other: https://www.rollitup.org/t/ethanol-wash-extraction.937044/

 

[DankDabs420]

Hi DankDabs420,
Welcome to RIU!


I have tried QWET and I think it works well. There are many variations of the method, I can recommend this tecnnique:

Here is a new thread on QWET here on RIU, I am not sure which one that is better than the other:

Thanks, MikeGanja!

I did come across both methods in my searches and funnily enough, was considering trying the second link that you sent. The cool air evaporation is intriguing, but I'm curious as to whether it would purge it as thoroughly as a heated method would?

 

[Fadedawg]

Thanks, MikeGanja!

I did come across both methods in my searches and funnily enough, was considering trying the second link that you sent. The cool air evaporation is intriguing, but I'm curious as to whether it would purge it as thoroughly as a heated method would?

Another method not discussed in the SPR QWET article is placing the alcohol solution in a casserole dish or pie plate and cover with a cloth to keep dust out. I set that dish on a 135F heat pad over night to turn it to syrup and place the syrup in a vacuum oven at 125F and -29.5" Hg to remove the rest.

I cover the dish with a glass sheet to catch bump splatter.

 

[DankDabs420]

Another method not discussed in the SPR QWET article is placing the alcohol solution in a casserole dish or pie plate and cover with a cloth to keep dust out. I set that dish on a 135F heat pad over night to turn it to syrup and place the syrup in a vacuum oven at 125F and -29.5" Hg to remove the rest.

I cover the dish with a glass sheet to catch bump splatter.

I have heard of people using germ pads to gently heat it, which helps speed up the evaporation process. But I have also heard that the cool air evap method results in a better taste, even if the heat used isn't past the terpenes boiling point. What's your opinion? I have also heard from numerous people that vac ovens are useless unless you spend a lot of money on them, due to their temperature control not being very accurate. Your thoughts?

 

[Fadedawg]

I have heard of people using germ pads to gently heat it, which helps speed up the evaporation process. But I have also heard that the cool air evap method results in a better taste, even if the heat used isn't past the terpenes boiling point. What's your opinion? I have also heard from numerous people that vac ovens are useless unless you spend a lot of money on them, due to their temperature control not being very accurate. Your thoughts?

I've used germination pads as well. Depends on how hot you go. At 135F the heat has little effect during evaporation, which has a cooling effect due to the latent heat of evaporation.

I've used still air and moving air without heat and both work. Still air takes longer and moving air is relatively fast, but you have to filter out the dust and be concerned about atmospheric humidity, because alcohol is hygroscopic and you will pick up water. It will show up as a tan liquid that doesn't want to leave toward the end.
https://skunkpharmresearch.com/evaporator-chamber/

 

[DankDabs420]

I assumed that would be the case; I didn't see how the terpenes could be affected if the heat was low enough, but the internet was filled with conflicting advice

I was going to attach an enclosed drying rack to a portable air conditioner via ducting and set it to fan, so there shouldn't be an issue with dust. It also dehumidifies the air, so that should help. But my main concern is, just how much of the solvent does the room temp method purge from the end product? Would heating it remove a higher percentage of solvent?