Edit: Results: A/B of 50g yield vs old STB yields (same batch).

[Orion]

This WAS going to be a reduced bark tea style A/B tek, but for this low amount it proved to be rather a nuisance. This will now be a standard A/B of 50g of bark in a 2 liter wine bottle. An acidic soak of 600ml of water with 30ml of vinegar added and about an hour and a half boil, then based with 120g of lye and currently pulling with 4 60ml lots of naptha.

Previous results STB with this batch of bark yielded only 0.5%, let's compare them to this as we go.

Result:

616 of clean spice now, plus other stuff I will scrape into changa.. I think I have found what I was looking for. 525mg total from 100g of this bark (poor I know, far below my average), VS 616 plus very active goo from only 50g A/B on the very same batch of bark?
That's over twice the effectiveness including uncrystalized precipitate.

 

[cyb]

Sounds like a neat little plan Orion...

With 300ml to work with:
I would 'suggest' adding 50ml of white vinegar (already diluted @ 5% straight out of the bottle) to acidify.
Soak
Add 20g Saline (optional)
Add 25g lye (in solution) to base (should go very dark).
Soak
Then pull

 

[SnozzleBerry]

The amount of vinegar shouldn't be a huge deal. For example...in the THP experiment using caapi, when I added 15ml of 5% vinegar to 1000l of water, the efficiency of the extraction jumped significantly (compared to non-acidified water) and excess acid failed to extract anything additional.

 

[Orion]

Cool, yeah I forgot about a lil bit of salt. Since I'm boiling 3 times in 350ml would I add salt and vinegar to all 3 boils or just the first ? So that would be nearly 150ml of vinegar and 60g of salt? Or split the 20g of salt and 50ml vinegar between the 3 boils ?

 

[cyb]

Cool, yeah I forgot about a lil bit of salt. Since I'm boiling 3 times in 350ml would I add salt and vinegar to all 3 boils or just the first ? So that would be nearly 150ml of vinegar and 60g of salt? Or split the 20g of salt and 50ml vinegar between the 3 boils ?

So for nearly 1 litre of end liquid:
say:
60ml Vinegar to acidify (20ml for each boil and strain)
add a touch more when you've collated the boils as some may have evapped.
30-50g of Salt (in solution)
50g Lye (in solution) to base...
Then pull

:thumb_up:

If you are going to reduce all your boils down to 300ml
then:
Add a lil bit vinegar to acidify
20g Saline
25-35g lye solution to base
Pull

 

[mailorderdiety]

also using vitamin C (ascorbic acid) greatly reduced the funky smell of my soaking/reductions... don't know if that is an option but i was really happy to learn about that.

 

[Orion]

After the first hour boiling at 350ml with 20ml vinegar I seem to have lost far too much liquid to evaporation. Even with the lid on there was only around 100ml of a thick dark soup left along with the very hydrated bark holding about the same amount. I'll count this as a hydration step and I will make sure I have completely hydrated bark before boiling next time. I have added 600ml to this extra 10 ml of vinegar. Color has returned to dark reddish as it had when I first added the vinegar.

Edit: clearly filtration is going to need an extra settle as it clogs rather quickly, adding an extra nights settling in the fridge onto this tek. Unfortunately for such a small amount of bark, this afford less conveniences than anticipated, which is a shame...

...HOWEVER, let's make SOME use of this.

Previously with this same batch of bark I have yielded only just over 0.5% (525mg from 100g) from an STB, which is a lot lower than I normally get (usually about 1.1%). I will keep the bark in the solution and we shall have a comparison of A/B vs STB on the same batch of MHRB.

 

[Orion]

Attached pics of first pull and extraction vessel. Soup seems to separate more readily than all of my STBs did.

Note the thin stem of the wine bottle- it makes pulling very quick and easy with a syringe.
Also check out the first 60ml pull, very saturated, I'm quite surprised to see this coming from 2 liters containing only 50g of bark.

 

[cyb]

... Rescinded...N/A...

This is for a Mimosa Extraction if I'm not mistaken...not Acacia...
Also the Saturation of the first pull is most likely down to the Salt addition.

 

[mailorderdiety]

sorry, i misread and deleted. also i was drunk posting which i never do, i had a rare whiskey and it went to my head.

 

[Orion]

I'm slightly pish right now too mailorderdiety..., but I gotta say, I can see much more xtal than expected with this method... results of precip soon... hexane re-x later...

 

[Orion]

Just under 1.8%. 0.886g from 50g, looks like it's mostly crystal too... not bad a/b... not bad...

We'll see what the full yield is after re-x including a solvent wash on the stuff I couldn't scrape out of the dish.

 

[acacian]

The amount of vinegar shouldn't be a huge deal. For example...in the THP experiment using caapi, when I added 15ml of 5% vinegar to 1000l of water, the efficiency of the extraction jumped significantly (compared to non-acidified water) and excess acid failed to extract anything additional.

yeah this is my experience with acacia... extracting with water seems to work just as well. when i do add vinegar it is a minute amount and I don't think its that neccesary

 

[mailorderdiety]

I'm super stoked! i simply used non-smelling ascorbic acid.... so all you smell is bark boiling, no nasty vinegar. and i got a tremendous yeild. i have seen the other side and you will be more than satisfied with the results from this tek, without using vinegar.

 

[Orion]

0.457 here, looks like some tasty smoalk. Still a little bit more goo to recrystallize and tally up, it's being a little stubborn.

 

[mailorderdiety]

gorgeous orion

 

[Silly(c)One]

When doing an A/B on mimosa, try without boiling the acid extraction...
If the temps stay below 50°C, the mimosa powder won't get sticky and is really easy to filter, then you get much less emulsions and the whole process gets much smoother... I usually soak the bark for half an hour per pull, and I pull until the color of the liquid is significantly paler. (my last A/B extraction on 500g yielded some 10L before reduction, final yield was more than 1.5% very white spice.)
You might as well like to do at least 1 or 2 defats with your NP solvent of choice.
But indeed, an A/B is a lot of work for 50g of MHRB.

Interesting experience, thanks for sharing

 

[Orion]

616 of clean spice now, plus other stuff I will scrape into changa.. I think I have found what I was looking for. 525mg total from 100g of this bark (poor I know, far below my average), VS 616 plus very active goo from only 50g A/B on the very same batch of bark?
That's over twice the effectiveness including uncrystalized precipitate.

Silly(C)One, sure thing. I'm glad I kept the bark in on this one, but for larger extractions I can see why it makes sense to filter out the material and reduce it to a manageable amount as a tea.

Quite pleased with these results.

 

[cyb]

Lovely xtals...
:thumb_up:

 

[DoingKermit]

Nice work, Orion!

After my first A/B, I never did another STB ever again. It is more effort, but so much less liquid to work with compared to STB's. Specially when extracting from shredded bark