Theory about oil color and density

[jimbob420]

I don't understand how you can say all oil is liquid?

This oil is surely not liquid ------->



it started out like this ------->



was turned into this -------->




than heated in a hot water bath and stirred until it looked like this ------>






then it is chopped up and ends up looking like really good bubble has or kif but it melts instantly and leaves absoultly no residue

LOVE THE TUG

 

[jump117]

Hola Grassman! this thread was awaked via “Have you said BHO!!!”

I love this thread, I find it very useful and interesting to know and to discuss.
Here is an abstract in Quotes (except method to budder):

…
The color of the oil depends on the variety, …

... the oil from the mature plant was darker the other.
...
- Indoor plants or indica -> dense oil
- Outdoor plants or sativa -> liquid oil
- Mature plants -> dark oil
- Not mature plants -> clear oil

Shalom.

part of that is correct, but part is not always true tho bro.

maturer plants darker oil yes.
not mature lighter colored, also
most indicas are darker, and sativas even mature may be a nice golden , where
many indicas are a dark red.

i am not sure where the liquid oil comes from.
i know if i take well grown buds, indoor or outdoor, indica or sativa immature or done, and
i can always get rock hard oil from them that will shatter if dropped on something hard.
runny oil often comes from contaminants it seems, in the weed. or making it from leaves it is less hard.

…
Almost all of my oil turns hard also.
…
I've never really found that maturity or strain affects the hardeness of the oil.

…its just from using whole buds not crushed up too much.
thats what gives rock hard oil.
leaf and or grinding up plant material to be extracted makes it runny.

…
indicas can be red or darker in general than sativas,
which are almost always golden.

2nd washes always darker.

… most important factor …, is the quality and ground up-edness of the material used.
not broken up leaf or buds gives lighter oils...
the more particulated, the darker the oil.. with yucky green atributes even
bud always give lighter colored oil than leaf, and even lighter than the purest kif i have made into oil.

…i am not sure what constituents butane leaches from a leaf sample other than thc, but it does for sure, right through double thick paper coffee filter... its some kind of extract...plant oil or something that is not from the glands, and tastes yucky!

I was very pleased to find an independent corroboration in a quotes from the giants.
An unbroken epidermis and correct timing provides an amber-glass density.
Imo fresh epidermis does it best.
A color of this stoned resin is another story.

Recently I studied ethanol extraction from Maple_Leaf buds through the microscope. Look at what I found.
Most of a trichs on this bud were clear – no milky, no amber.

A red-amber glass was achieved from these clear trich. Where is this color from?

I suppose a red pistils pigment bleeds in solvent and colors up resin into yellow-orange-red gamma.

This probably explains a color dependence on a variety and a maturity thru the presence of red pistils.
I’ve got light yellow glass-resin from White_Russian that is not sativa.
It was bonsai mom that was autoflowered spontaneously and all her flowers were cutted off and extracted.
Imo a resin was yellow because at the moment of extraction she had only white pistils.

jump

 

[Hashmasta-Kut]

interesting theory, good post. i will consider this.

one thing right away i will say is the amount of heat applied to a sample has a large factor on its color too. if that oil was heated much it would darken, regardless of red hair quantity.

 

[Papulz]

uv exposure creates a red hue to thc laden stuff i think i recall

 

[GrassMan]

Hi,

Hola Grassman!
An unbroken epidermis and correct timing provides an amber-glass density.
Imo fresh epidermis does it best.
A color of this stoned resin is another story.

Recently I studied ethanol extraction from Maple_Leaf buds through the microscope. Look at what I found.
Most of a trichs on this bud were clear – no milky, no amber.

A red-amber glass was achieved from these clear trich. Where is this color from?

I suppose a red pistils pigment bleeds in solvent and colors up resin into yellow-orange-red gamma.

This probably explains a color dependence on a variety and a maturity thru the presence of red pistils.
I’ve got light yellow glass-resin from White_Russian that is not sativa.
It was bonsai mom that was autoflowered spontaneously and all her flowers were cutted off and extracted.
Imo a resin was yellow because at the moment of extraction she had only white pistils.

jump

Hola jump117!

Nice to see this thread back.
From my expirience (since the start of this thread, I made a lot of extractions). I arrived to this theory:
Most of the people says that the harvest moment is when trics are milky and a few amber. And I think it is Ok for smoking buds or hash, but not for bho.
When we make Bho or another chemical extraction, what we are really doing is to extract the "juice" from the inside of the trics.
This "juice" (thc + terpenes) are usually inside a wax capsule which protect the thc (the trics).
So, I arrive to the conclusion that the oil color is directly related to the trich maturity and if we think that when we make chemical extractions we brake the protector layer to get what is inside, we are exposing thc & terpenes to oxigen and uv rays.
when thc oxidices, it turns purple, but we are not extracting just thc, also some terpenes. I think that the mixture of purple from the thc exposed to oxigen and the terpenes color, makes this amber final product.
So, if we want some clear bho, we must harvest plants 1 or 2 weeks before we should do it for somoking bud or making water or dry extractions

This is the clearest extraction that I made and was done from an oasis inmatured plant (old pic).



Peace.

 

[Hashmasta-Kut]

but it makes a huge difference what the strain is. some sativas harvested late will yield a much yellower and clearer oil than some indicas harvested early.

 

[jump117]

For sure there are few reasons witch cause different changes of color.

The color bleeding from pistils seems to be pioneering before oxidation & UV.
Look at the blow up plz.

These trichs were found in a cavern after alco-wash.
They weren’t heated or UV-exposed nor even opened, but they are already colored with red pistils’ color.

I’m sure that UV doesn’t play any role in case of my studies. There is no UV in my kitchen in the evening in winter.
To be more correct - it’s too little UV here to be considered as a reason of color changes.

Not so long ago I’ve observed the oxidation of a sap that also goes from clear to red, but very slowly.

jump

 

[mpd]

My experience has always been different. I get all kinds of colors depending upon what I am using as the extraction agent (isopropyl, methanol, ethanol or butane), the heat source for the boil off (double-boiler water boil or pan on the stove or pan in the dead oven), the time when I did the extraction relative to the harvest (extracting from freshly cut material versus dried and cured material) and even the heat setting of the pan.

I found that using methanol or ethanol will produce a very dark hard candy for freshly harvested stuff. The outside is glossy black, with streaking in it while the inside looks more like black/green beeswax. This stuff is totally debilitating to smoke. When all else fails to put me to sleep, this is my big gun because you do a puff and you are done.

I found that isopropyl extractions give me a darker product than butane, but butane is much more of an explosion hazard. One less thing to deal with I guess by not using butane.

I was always paranoid that big brother was tracking my butane purchases so I stopped. I buy methanol on eBay, ethanol at the liquor store and isopropyl at Wal-Mart.

I'm not paranoid at all, just really, really suspicious of what is going on around me...

 

[jump117]

... I get all kinds of colors ... a very dark hard candy ... glossy black ... black/green beeswax. ... a darker product ...
I buy ... ethanol at the liquor store ...
.

Try to shorten the washing time from your (10-15) to correct (3-5) min and you will have much better colors and density. I've illustrated this extraction with a lot of pix in a topic in my sig.

 

[gunnaknow]

The red colour is probably largely to do with carotenoids and perhaps also anthocyanins. Carotenoids are yellow, orange and red pigments. They are terpenoids, like the cannabinoids, although they are larger and they are quite variable. They dissolve in the same solvents that cannabinoids do for the most part but to varying degrees because of their variabilty.

Red pistills aren't the only culprit for the red colour in oil because the carotenoids are found throughout the leaves and buds. You've seen how leaves can yellow, yes? The yellow and orange colours are from carotenoids. They were always there in the leaves but the green chlorophyll was masking their presence. Many of the carotenoids that appear yellow or orange, including those found in cannabis, are actually red in higher concentrations. An example would be how the carotenoids in saffron appear red when concentrated in the herb but appear yellow when the carotenoids are leached into dishes during cooking.

http://en.wikipedia.org/wiki/Carotenoid

In the leaves of Cannabis sativa L. were found the following carotenoid pigments: ß-carotene, lutein, zeaxanthin, violaxanthin, neoxanthin and ß-cryptoxanthin. The ratio between the content of ß-carotene and lutein - which are the principal foliar carotenoids - was supraunitary, a feature that might be used as a chemotaxonomic criterion. It is worth to be mentioned the relatively high content of zeaxanthin and ß-cryptoxanthin in comparison with the level of these pigments in the leaves of most higher plants. The ratio between the content of chlorophyll a and b was of 2,17.

http://notulaebotanicae.ro/nbha/rt/metadata/144/138

Some of the carotenoids found in cannabis:

http://en.wikipedia.org/wiki/Beta-carotene
http://en.wikipedia.org/wiki/Lutein
http://en.wikipedia.org/wiki/Zeaxanthin
http://en.wikipedia.org/wiki/Violaxanthin
http://en.wikipedia.org/wiki/Cryptoxanthin

As I said before, anthocyanins may also play a role in the right circumstances. Unlike carotenoids, however they are soluble in water. They will dissove in polar solvents like alcohol but not non polar solvents like butane. They can therefore be present in ISO but not BHO. They are usually red or blue in colour, depending on structure aswel as pH but they can also be colourless. If you gradually add a base like sodium bicarbonate to red wine it loses it's colour and if more is added it will turn blue. By adding an acid the wine will return back to a red colour.

http://en.wikipedia.org/wiki/Anthocyanin

http://books.google.com/books?id=we...9qjWCw&sa=X&oi=book_result&resnum=7&ct=result


gunna

 

[mpd]

Try to shorten the washing time from your (10-15) to correct (3-5) min and you will have much better colors and density. I've illustrated this extraction with a lot of pix in a topic in my sig.

Hmmm... The correct 3-5 minutes? That only guarantees that I have to do the second wash a bit longer... That's my experience, but I'm sure a canna-god like you will have the correct solution for this and set me straight.

 

[Jah (b)less]

i dont like it as much for a couple reasons.

why don`t you like budder? i think it`s stronger but a little harsh tho

 

[Wfw1]

One thing I've never understood is when I buy oil out on the market it's always a yellow-ish golden color, soft and sticky to the touch ( you can't touch it with your hands ) yet the oil I make is hard ish at room temperature, I can't poke it with a pin I have to heat it to get a drip and it's always darker, amberish. How are they making this golden sticky oil? don't get me wrong I love my oil the way it is but it's a pain in the ass having to explain to people people that mines actually better, any input?

I could snap pics if anyone wants to see it.

 

[masterwelder65]

Yes please snap pics.

 

[jump117]

...
i am not sure what constituents butane leaches from a leaf sample other than thc, but it does for sure, right through double thick paper coffee filter... its some kind of extract...plant oil or something that is not from the glands, and tastes yucky!

… I think water washes out a terpen protective cover from an unidentified internal resin softener that starts to extract faster and provides a runny resin effect.

Any maceration will also demolish that protective shield.

jump

 

[jump117]

This is related to resin color and density.

I’ve processed a fresh resinous bud in two stages working.

In the first stage I got virgin resin in charas style. It appears to be light yellow while glands look colorless, and it was sticky.

In the second stage ethanol wash was used and I got an amber color stoned resin.

…
Resin prints of smeared glands and some whole ones..

A pile, a chunk and a pivot.

…
First (3 mins) run of ethanol extraction is always good looking.

…

Color of resin changes from light yellow to mid amber.

Maturity and a strain of the only sample was the same of course. UV was none.

The two reasons of color changing from the list above in this thread still remain under suspicion - oxidation and/or pistils bleeding.

But nothing was said about density.

Q: Why does a sticky resin turns to glass after alco? Spirit Varnish effect?

 

[Hash Zeppelin]

I just got an idea. Add all natural food coloring to you bho before the butane evaporates, and you can dye your bho different colors, like blue or pink. that would fun for amsterdam coffee shops. They could sell it in grams wrapped like jolly rancher hard candy

 

[Hashmasta-Kut]

is it ok to vaporize food coloring? i would like some blue oil..

 

[Hash Zeppelin]

I imagine if it is 100% organic then it is safe to vaporize. I would still water filter it though. I hit my vocano bags though my water bong.

 

[jump117]

It is much more difficult to remove from a resin then to add anything into it.
What pigments do you suppose to use?