Best way to filter powdered root bark - Vovin Tek

[mataylor]

Hi, so I have done extractions before and I am currently a fan of Vovin tek. Previously, I bought rough bark and ground it myself, but I recently came across some pre-ground, extremely fine root bark powder. I am used to using a Buchner filter apparatus with a hand pump on previous extractions, however, the powdered bark seems to instantly clog the filter and takes ~1 hour to pull like 10ml. I know not to add much liquid to the filter, and to use multiple filter papers, but it really seems like it instantly clogs.

Anyways what I'm wondering is, what is your favorite way to do the acid extractions and subsequent filtering with powdered bark? Laboratory vacuum pumps are crazy expensive, and I know theres got to be a better way. I already use pretty coarse filter paper, should I use a more porous substitute like coffee filters? Should I fridge decant between each acid extraction and just siphon off the top layer?

Thanks for the input

 

[joedirt]

Hi, so I have done extractions before and I am currently a fan of Vovin tek. Previously, I bought rough bark and ground it myself, but I recently came across some pre-ground, extremely fine root bark powder. I am used to using a Buchner filter apparatus with a hand pump on previous extractions, however, the powdered bark seems to instantly clog the filter and takes ~1 hour to pull like 10ml. I know not to add much liquid to the filter, and to use multiple filter papers, but it really seems like it instantly clogs.

Anyways what I'm wondering is, what is your favorite way to do the acid extractions and subsequent filtering with powdered bark? Laboratory vacuum pumps are crazy expensive, and I know theres got to be a better way. I already use pretty coarse filter paper, should I use a more porous substitute like coffee filters? Should I fridge decant between each acid extraction and just siphon off the top layer?

Thanks for the input

Pillow case.

 

[gibran2]

...Should I fridge decant between each acid extraction and just siphon off the top layer?

Thanks for the input

Yes (no need to put in fridge). Powdered MHRB settles very quickly. This is a nice mess-free way to do it!

 

[mataylor]

awesome, thanks for the tips. much appreciated

 

[prottel]

Reason it is hard to filter is because you boiled the powder, which will pull out particles that clogs the filter very fast. One way to avoid it is to put the powder in a jar and add water no hotter than 50C/120F. Shake or swirl the jar for a little bit, then filter it. Should be no problems with clogging. Then redo it with fresh water. Warmer water can be used after the initial two extractions.

Alternatingly you may want to try out the THP setup.

 

[actualfactual]

anything cotton like an old t-shirt

 

[Rivea]

I cut out a round disk of white cotton and put it in my Buchner funnel. It works like a champ.

 

[justine]

...Should I fridge decant between each acid extraction and just siphon off the top layer?

Thanks for the input

Yes (no need to put in fridge). Powdered MHRB settles very quickly. This is a nice mess-free way to do it!

I agree, I always decant and pour rather than filter and it works great

 

[Trickster]

I've noticed that the final product quality depends on how well the acidic solution is filtered prior to basification.

I agree, I always decant and pour rather than filter and it works great

It does, indeed, although it takes ~12 hours for the solution to clear and settle completely.

Powdered MHRB settles very quickly. This is a nice mess-free way to do it!

I experimented a few times by decanting the solution after an hour first and leaving it to settle for another 8 hours. Always there was more sediment, almost as much as after the first decanting, only finer.

If I am in a hurry I use vacuum filtering. What works for me, is progressive filtering. First I use a cotton ball, then a coffee filter and then a couple of lab filter discs of varying density. With some experience it takes ~30 min to filter 0.5l of acidic solution to complete clarity.

Laboratory vacuum pumps are crazy expensive

A basic water aspirator is sufficient and it costs a few dozen dollars only.