[Douglas.Curtis]

What's the longest you've found extractions to stretch before quality issues begin. What materials would someone expect to find extracted, from an extra long soak time? Personally, I'm a huge fan of qweth and my soak times are very short. This is research information for someone else.

I greatly appreciate any informative replies on this. Thank You!

Save

[Gray Wolf]

Originally Posted by Douglas.Curtis

What's the longest you've found extractions to stretch before quality issues begin. What materials would someone expect to find extracted, from an extra long soak time? Personally, I'm a huge fan of qweth and my soak times are very short. This is research information for someone else.

I greatly appreciate any informative replies on this. Thank You!

Save

Good question! Pharmer Joe has run some really extended soak times below -50C, so I just asked him that same question via email and will report back.

[Douglas.Curtis]

Originally Posted by Gray Wolf

Good question! Pharmer Joe has run some really extended soak times below -50C, so I just asked him that same question via email and will report back.

Awesome! Greatly appreciated. Save

[Gray Wolf]

Originally Posted by Douglas.Curtis

Awesome! Greatly appreciated. Save

Joe says he doesn't know what the limits are at -50C to -70C, but he's done it as long as two hours without issues and that there was no reason to go longer, because they had a full extraction.

[Douglas.Curtis]

Originally Posted by Gray Wolf

Joe says he doesn't know what the limits are at -50C to -70C, but he's done it as long as two hours without issues and that there was no reason to go longer, because they had a full extraction.

This is exactly what I was looking for, without knowing it. Thank Joe for me, you both rock!

[WaterFarmFan]

Originally Posted by Gray Wolf

Joe says he doesn't know what the limits are at -50C to -70C, but he's done it as long as two hours without issues and that there was no reason to go longer, because they had a full extraction.

Hey GW. Might you ask Joe if he has a seen any water soluble or other nasties being picked up when using material with a higher moisture content and 200 ethanol at <= -50C? An example would be ground flower material at 25% moisture versus 5%. Thanks!

[WaterFarmFan]

I have a few questions about distilling with 95% vs 100% alcohol. When 190 proof is cold boiled, does the alcohol vapor retain the percentage level of water? Or is alcohol vapor (before condensing) pure but then combines with water vapor that is separately condensed? Logic seems to dictate that the alcohol would boil first, leaving the water and concentrate behind, but that does seem to be the case (from my observations).

An example would be using 2L of 190 proof ethanol, which contains 100ml of water. If solution contains 50 grams of concentrate, and is allowed to cold boil down to "bumpy syrupy" stage of ~100ml, would the residual water and alcohol still be in the same ratio (19:1)? I ask because I see a difference when using 190 vs 200. 190 seems to always have a bit more residual water content (but no where near 100ml).

I understand that 190 proof is the natural level with interaction with moisture in atmosphere, and that steps must be taken with Extractohol to minimize water pickup. But how fast does this reaction really happen? Is this process (200 to 190) accelerated under vacuum? Would 200 proof still be 200 after -50c extraction and reclamation?

Thanks!

WFF

[troutman]

Alcohol over 96% will grab moisture from the air if left exposed and dilute itself due to it being hygroscopic.

https://en.wikipedia.org/wiki/Hygroscopy

The easiest way to get 100% ethanol is to add a drying agent and distilling with a drying tube
attached to the exit vent of the still to prevent moisture from entering and ruining the final product.

The dry alcohol should be stored immediately in a closed bottle and only opened when needed.

[WaterFarmFan]

Originally Posted by troutman

Alcohol over 96% will grab moisture from the air if left exposed and dilute itself due to it being hygroscopic.

https://en.wikipedia.org/wiki/Hygroscopy

The easiest way to get 100% ethanol is to add a drying agent and distilling with a drying tube
attached to the exit vent of the still to prevent moisture from entering and ruining the final product.

The dry alcohol should be stored immediately in a closed bottle and only opened when needed.

Thanks Troutman. Did not know the term. I don't want to dry the alcohol myself, but was more curious about the properties. I think that 200 proof Extractohol is made with molecular sieve. I did a bit more reading and found this:

Molecular sieve for Ethanol Dehydration Process requires high level of purity in the range of industrial and food applications. Type 3A molecular sieves are considered as the most effective type to dry ethanol. In the ethanol dehydration process, the hydrated ethanol vapors are passed through the molecular sieve bed. As the vapors pass the sieve bed, in the very first step water gets adsorbed by the pores of the adsorbent structure. The process of adsorption continues until the possible water adsorption from these vapors gets completed or molecular sieve gets saturated.

The process of transferring the water from hydrated ethanol vapors to the activated molecular sieve occurs through an area or a zone where the reduction of water content carries from its inlet to outlet concentration. This master transfer zone provides one active bed for transporting the dehydration while another bed for regeneration. The movement from one bed to another is handled and controlled using the powerful valves and automation. The pure ethanol after the dehydration process using molecular sieves can be used as a fuel in automobiles and other useful applications.

[G.O. Joe]

Does pot dry alcohol or does alcohol dry pot? What does cold boiling mean? If it's vacuum then you'd have to look up the vapor composition for that vacuum. Or vaporizing below boiling should obviously favor removing the alcohol.