Glossery (help plz): concrete, resinoid, oleoresin and absolute

[spurr]

@ All,

I am trying to figure when when it's proper to use one term verses another. There seems to be some ambiguity of term usage, or at least non-conformity, in the world of cannabis extracts and concentrates. So without further adieu, please help explain this to me and/or correct me:


1. Initial extraction from plant matter:


Dry sift kif and H20 hash: made via filter screen extraction to separate the trichomes from other plant matter.


Oleoresins: made via solvent extraction that is not a hydrocarbon (such as n-butane); instead made with solvents like alcohol (such as ethanol).

http://fragrantfields.blogspot.com/2008/07/essential-oils-absolutes-co2-extracts.html

Oleoresins may be obtained naturally, as seepage or exudation, from plants. Most commonly, oleoresins are obtained through the solvent extraction of the plant material. They are used widely in food preparation and cosmetics and toiletries. These concentrated resins are usually colorful, so be prepared for a color shift in your product if you use these materials.

Resinoids: made via solvent extraction using hydrocarbons (such as n-butane).

http://fragrantfields.blogspot.com/2008/07/essential-oils-absolutes-co2-extracts.html

Used in perfuming, resinoids are obtained from naturally resinous materials, such as fir, pine or balsa trees, via hydrocarbon extraction.

2. Re-dissolving/washing of initial extraction:


Concretes: made via solvent extraction of existing initial extract (such as dry sift kif or water hash?), using alcohol or ether as solvent. I know common usage of the term concrete in the cannabis world is to mean the extract attained via butane (or other solvent) extraction of plant matter. However, I am unsure if the common usage of the term concrete is correct. Could not a concrete be made via re-dissolving resinoid extract with ethanol as solvent, then evaporating off the solvent?

http://fragrantfields.blogspot.com/2008/07/essential-oils-absolutes-co2-extracts.html

Concretes are highly concentrated solid or semi-solid perfuming materials. They are waxy to the touch. Concretes are made by alcohol or ether extraction of the essence of the plant material from an existing source, such as a pomade or enfleurage. We use concretes in perfuming and to make absolutes.

Absolutes: made via alcohol solvent extraction of concrete, e.x., using ethanol. However, if my question about concrete and re-dissolving resinoid is correct, then an absolute would be a second washing of the resinoid, no? That is, the concrete would be what cannabis folks call an absolute.

http://fragrantfields.blogspot.com/2008/07/essential-oils-absolutes-co2-extracts.html

An absolute is a complex material. To obtain an absolute, you must first have the concrete, as described above. Absolutes are extracted from concretes via alcohol. Most absolutes are liquid, but certain ones are semi-solid or solid. “Absolutes can also be obtained from the water of the distillation process such as Lavender water-absolute or Rose water-absolute…The part of an absolute one can steam distill is called an absolute oil.”(2)

 

[decarboxylator]

hmm. well. I guess I'll go. And I'm not citing anything because I'm making it up.

Concentrates... I love em.

Extracts:
Dry screen, aka kif.
Ice water hash aka bubble hash.
Scissor hash.
Dry Ice Dry Screen aka Delta-9.
Sonic dry screen, kif made with sound.
Solventless Wax, the highest quality ice water hash.

Subcritical Extracts:
Thats your QWISO, alcohols, all the non-pressurized solvents.

Supercritical Extracts:
Butane, CO2, and Oxygen solvent extracts
Butane itself is broken down into several sub-categories.
Wax, Comb, Oil, Shatter, Toast, and on and on. These cute names are mostly the result of washing the extract with an alcohol after extraction. I guess that is absolute?

 

[Trichgnomes]

Butane extractions most definitely fall into the realm of sub-critical, contradictory to what many people will tell you.

 

[decarboxylator]

Butane extractions most definitely fall into the realm of sub-critical, contradictory to what many people will tell you.

you are correct.