Does 1 gram of cannabis that is 20% THC mean that there are 200mg of THC total?

[st0wandgrow]

Ok, I think I'm pickin up what you're laying down.

This should make for an interesting conversation the next time I see that lab tech.

 

[st0wandgrow]

So it would be fair to say that the drier the bud, the more skewed the results will be in favor of higher thc percentage..... or is the moisture content (weight) factored in to the final percentages?

 

[Sativied]

So it would be fair to say that the drier the bud, the more skewed the results will be in favor of higher thc percentage..... or is the moisture content (weight) factored in to the final percentages?

I don't know if some factor it in, they wouldn't (at least shouldn't) without explicitly mentioning it because you are there to get test results of your sample. One of the reasons to have it tested at a lab is not just for you to know what's in it but also so you can show your buyer/customers the certificate/report. So the sample should be close to what you end up selling. If you sell it weeks or even months later it will be skewed.

And that's exactly why the better reports include the moisture content (examples in one of my previous posts), so you can sort of factor it in yourself when making comparisons to other results.

 

[a senile fungus]

It seems to me that a tenth of a gram of mj in a lab would dry out pretty quickly. I don't moisture would really be a factor here...

Sent from my Nexus 5 using Rollitup mobile app

 

[bunnyfather]

Yes 1g of 20% thc bud would contain 200mg of thc.

The bigger question is what isomers are there and at what percentage are they of the actual thc?

 

[racerboy71]

Those aren't mutually exclusive, so the answer to your question is both. Most test results that show results ranging from like 10-25% (applying to the OPs question) refer to THC% of the dry weight. If you compare that % (of weight) to the total % of cannabinoids (included in the better test results) you know the % of THC of the total cannabinoids (which is typically specifically mentioned if that is the case). Those results typically show roughly 55-95% refer to the % of total cannabinoids but can vary much more especially in high cbd strains.

Maybe my first link now makes more sense, combine it with post #8 which pretty much nailed it already:
http://analytical360.com/testresults

At TestLabAmsterdam they take exactly 0.1 gram of mj and 0.05gram if it's hash and the % in the test results (typically ranging from 13-20 for THC) apply to that weighted sample.

Both total cannabinoids and individual cannabinoids are expressed in % of weight. Proof is in the math of thousands of test results (add up the individual % and you'll get the total % (of weight of part of the sample you provide). If THC% were a % of that % you'd still have no idea of how much THC was in the sample you gave.

Bunch of stoners!

i'm still not buying that 20% of a bud is made up of thc.. there is no way in hell that even makes one lick of sense to me.. look at a bud.. especially a nice dense bud, and try and tell me that the surface area on the outside of that bud makes up even close to 20% of the entire mass of that bud.. no friggin way..
first of all, how much do trics weigh in comparison to bud matter? lil to nothing would be my guess.. so if you're going by weight to weight, it's already no way as just think about it.. how much do those lil trics weigh??
secondly, just going by mass vs mass.. you've got an entire bud, and then you've only got the surface area of the outside of that bud.. and it's not even like every square mm of the surface of a bud is covered in thc..

 

[qwizoking]

rb I make alot of hash..
30% hash oil by weight is not uncommon

 

[bunnyfather]

It is totally percentage of dried flower weight. Remember that most buds a dried to 10 to 15% hydration, that's a lot of weight. Once you've taken everything into factor it's not that hard to believe.

 

[st0wandgrow]

I agree with your thinking rb, but I'm no expert on the topic. I find it hard to believe that if you removed every trichome head on a bud, then weighed the sum of the trichomes that it would amount to 20% of the buds total weight. I dunno

 

[racerboy71]

rb I make alot of hash..
30% hash oil by weight is not uncommon

ok, but hash isn't 100% thc is it qwizo?

 

[racerboy71]

I agree with your thinking rb, but I'm no expert on the topic. I find it hard to believe that if you removed every trichome head on a bud, then weighed the sum of the trichomes that it would amount to 20% of the buds total weight. I dunno

yeah, i'm no expect either stow.. i never even really thought about it before this thread popped up either, embarrassed to say, but now the topic has been brought up, it's bugging me, lol.. i'm dying to find out the legit answer..

 

[qwizoking]

No but it can be 70% thc. and that of 30% weight is about 20. the numbers add up.. an oz of bud typically yields 6+grams of hash and higher is common

 

[MarWan]

in ketamah, morocco, a 100 Kgm plant flowers (with stems & seeds) is needed to produce a 1 Kgm of first grade hash (using the traditional methods) according to a moroccan farmer in some hash documentary.

 

[qwizoking]

hash refers to a collection of trichomes. it can be sieved distilled solvent extracted etc there are many ways.. typically sieved hash won't give quality over about 10% butane is typically 20+ and qwiso about 15..

 

[Cannabis.Is.Free]

No st0 is wrong, it is 20% of dried bud. THC can actually make up to about 95% of the total cannabinoids.

Don't take my word for it though, here's a quote from Mel Frank:
"In very potent strains, carefully prepared marijuana can be 30 percent delta-9 THC by dry weight (seeds and stems removed from flowering buds). "

I guess you guys never created BHO or looked at cannabis test results including the total percentage of cannabinoids.

Doesn't wet MJ test higher?

 

[bunnyfather]

So...

THC is metabolized mainly to 11-OH-THC by the body. This metabolite is still psychoactive and is further oxidized to 11-nor-9-carboxy-THC (THC-COOH). In humans and animals, more than 100 metabolites could be identified, but 11-OH-THC and THC-COOH are the dominating metabolites. Metabolism occurs mainly in the liver bycytochrome P450 enzymes CYP2C9, CYP2C19, and CYP3A4. More than 55% of THC is excreted in the feces and ~20% in the urine. The main metabolite in urine is the ester of glucuronic acidand THC-COOH and free THC-COOH. In the feces, mainly 11-OH-THC was detected.

So... O does that mean if I intake 1g og 20% thc bud that I should find 110mg's in my poop

 

[Bugeye]

It's not a percent of weight. Stow had it right initially. There are different ways to test it,but it comes down to this calculation: thc content = thc/(thc + thc a). Great intro post from a guy doing these tests where he explains it very well. Check out this link:

https://www.rollitup.org/t/first-post-how-to-correctly-analyze-for-cannabinoids-in-cannabis.785340/

 

[dannyboy602]

Great thread. Good info and five stars.

 

[bunnyfather]

It's not a percent of weight. Stow had it right initially. There are different ways to test it,but it comes down to this calculation: thc content = thc/(thc + thc a). Great intro post from a guy doing these tests where he explains it very well. Check out this link:

https://www.rollitup.org/t/first-post-how-to-correctly-analyze-for-cannabinoids-in-cannabis.785340/

But that's dated and not completely correct information. THCa is the result not part of the make up. THC result from its partial agonist activity at the cabbinoid receptor CB1, located mainly in the central nervous system, and the CB2 receptor, mainly expressed in cells of the immune system. The psychoactive effects of THC are primarily mediated by its activation of CB1 G-protein receptors , which result in a decrease in the concentration of the second messenger molecule cAMP through inhibition of adenylate cyclase.

 

[qwizoking]

is there a particular reason you keep posting these copy pastes or whatever that have nothing to do with anything