The tek for this trick IS posted. It is NOT advised. OP of said tek is fortunate to still be with us imo…
Edit: without @Waxplug1’s (completely insane) pioneering work, and goading of the community to figure out what he was doing, CRC would have remained a trade secret of a select few.
Not because B81 is relevant.
Just to tie two “trying to polish in EtOH” together to make exploration easier on those that follow 
Is the color in the mother liquor or father rock?
When redissolving extract, what dissolves first?
Hi Goldendawg, we supply carbon media imbedded in Cellulose/DE material. We have had good success working with extractors looking to remove color. Our product is not lose so it helps remove the mess from the application and you don’t need to later remove the carbon. Let us know if we can help. Thanks, Greg
I think you just coined a new term haha
Here ya go and you’re welcome 
Ik those are all eho but it’s mainly color remediation and you’re working with ethanol.
Welcome to future4200
If the extract is loaded with media together, and then add solvent, shouldn’t it remediate the mother liquor first as it’s the first to dissolve?
Make you a 1/4-1/2 inch silica cake for your buchner,
Use an aquarium heater to warm up your ethanol bho mix, put some carbon in (amount depends on clarity you’re looking for) stir, let sit for 20-45 min and warm
Then run it thru the Buchner.
Repeat as needed
Edit* DONT waste money on other chemicals, they’re mostly ment for bho/other solvent remediation not ethanol.
Any updates on how this is going? Someone had mentioned dissolving the BHO in pentane (or other hydrocarbons) rather than ethanol, why is this, does this effect the terp profile? What about heptane as an alternative?
Would these other medias perform better with a hydrocarbon solvent vs ethanol?
What about a winterization for BHO dissolved in ethanol or hydrocarbon solvent; any benefits there?
This community rocks!! I am so grateful to be apart of it, knowledge is power and there is tons of muscle here 
Any non-polar solvent, including heptane, should be effective at colour remediation. Ethanol is too polar and minimizes the interaction between your pigment molecules/things you want to remediate and the adsorbent.
Winterization works in methanol or ethanol due to the difference in solubility of waxes in those solvents at room temp (soluble) vs -40 C (insoluble). Waxes are soluble in hydrocarbons at lower temperatures which is why they are less effective for winterization.
bho would make the easiest oil to clean up imo
Just simple cold bho crc run then a full decarb…hmu Im open to help. Bho gets all target molecules and it just seems this would be easier to distill…I bet first pass woukd be light as can be w one pass. No winterizing needed if you can maintain temp cold enough
Thank you both @PolyC and @StoneD for the explanations, I am excited to use an alkane instead of etoh to clean up my BHO!
Here`s the boat that I am in; I have received BHO in the form of a saucie mix that has really separated into a viscous liquid layer on top and a more sugary gritty sauce on the bottom. It is very dark in color and this is what id like to remediate. If I want the end result to have the same kinda sauce consistency will winterization impact this for the better or worse?
Is there a time where I would not want to winterize - lets say I have a nice stable shatter but I just want to color remediate it, if I was to winterize this shatter, would that impact the ending stability of it?
Sugar and sauce sounds tasty. I’d probably just live with the darkness if the taste is on point.
Separating the sugar from the sauce would be the first step in remediating something like that. Then wash your crystals and do a recrystallization.
Clean up the color on the sauce portion separately. I’d still want to avoid etoh to do that, if possible. Then again, if you have sugar n sauce to start with, you can probably afford to lose some terps along the way.
Yeah when running a bho rig at temp…the larger the rig the harder to maintain temp
@BigM is probably correct, just run what you brung. Worrying about color often just wreck great extract.
Ethanol would be the wrong choice.
If I was asked to perform this trick, I’d let it finish crashing, centrifuge it to separate out the thca, then bring the liquid layer up in 10volumes of -20C (at least) butane. Then filter over about 1g of baked opaline silica (magic dirt of your choice) per 20g of extract.
Recover solvent gently. Purge under vac for a couple of hrs. Add back to THCa
If by winterize you mean bring up in ethanol, freeze, filter, recover, then NO do not do this if you wish to have terpenes left. The boiling point of ethanol is too high.
If you want to turn that sauce into shatter by deliberately loosing terps, then go right ahead.
You will seldom improve color by dropping out the fats (winterizing), you will usually improve the “stability” (raise glass transition temp).
Didn’t understand the question, u could potentially melt in large pressure vessel w tane the drop the Temps and run it through crc or just pour it off the top using butane
Do an ethanol test if u feel there’s tons fats…melt gram into about 4oz of ethanol place in freezer if clouds white its fatty
Ooh, nice color I also have been experimenting with DE and AC to see the effects of color remediation. It’s been working very well for me over here, but I am also using Co2 Crude as my input. I find the DE doesn’t do much for color remediation, at least for me it just helps catching all of the big solids that the charcoal didn’t. How much charcoal are you using? are you using fritted filters? bc 10/10 would recommend picking up a nice glass funnel with a fritted disk makes for a smooth passing, especially in charcoal. I find you can usually get a nice color using just the AC you may have to pass it through more than once with fresh AC, but I’ve gotten a nice golden color suitable for carts at least using just Charcoal! Just make sure to flush your charcoal with plenty of EtOH to recover as much of your concentrate as possible! 
Pics of Charcoal filtered Co2 Extract in Carts:
20221206_080036|666x500
You’re welcome. 
