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What percentage of THC is lost, in your opinion, during the green hit off a bowl?

Bruce Haze

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Feb 25, 2012
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IN YOUR OPINION, with a 1400 degree butane flame from a bic lighter (unless that's wrong I think it is around 1400), how much of the THC in a packed bowl, whether a regular bowl or an ashcatcher bowl for a bong, is destroyed during the first hit, on average?
Now, consider the temperatures people set their vaporizers too vs how hot a butane flame is. How much of the actual THC is vaporized during that first hit on average? I know how big the bowl is and how crazily you light it are factors, which is why I said on average. I ask this because the green hit seems to be, in my experience, about 70% of the THC, at least.
Now as a note, I smoke alone 99% of the time. I am not asking this because I smoke in a group all the time and think its unfair to not get green hit or anything LOL. I want to know because I would rather pack multiple one-hit bowls and get that same THC rush then a big bowl and have very little THC past the first hit.
 
I don't think you'll ever get a 1400 degrees celsius flame out of a standard bic lighter under usual operating conditions, even though butane under ideal conditions can burn even hotter. You can always pack the top of your bowl with something else that you can ignite and even then you don't have to light everything up, just a small portion and it will slowly creep up with the rest of the content in your bowl. That's a good way to minimize your losses. Downside for you would be, I guess, that the smoke wouldn't be as thick as if you light everything up like crazy. With proper technique I believe the losses are quite minimal, definately nowhere near a 70% figure.
 
^ I'm guessing he's talking in Fahrenheit, but I could be wrong. That's kinda close to what I've heard the average lighter flame burns at

IMO/IME a very small amount is lost unless you torch the whole thing instead of nipping at the sides. But definitely is possible to lose a noticeable amount if you torch the whole surface for more than a second or two

So with proper technique I'd say under 5% lost. Depending on shape/size/amount of your bowl, maybe up to 20% if you went all out torching the hell out of a one-hitter. But that's with every possible aspect at an exaggerated extreme
 
I light the whole bowl no cornering shit. I have a double perculator bong with a nicely sized bowl. It is hard to believe that that a flame that hot doesn't vaporize nost of the thc and that that brownish yellow weed left in the bowl still has thc after that first hit.. maybe some other cannabinoids but that air is HOT coming frome that flame.
Considering the temp vapes do the job at.. its difficult to believe theree is much thc left. I am talking about the flame in middle of bowl sucking normally.

Edit- 1400 Fahrenheit. My bad for not specifying that guys!
 
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1400C([rate of absorption into lungs])/[speed of combustion]([environmental temperature]-[core body temperature])= percentage of THC lost during the green hit.

I'm pretty sure you're joking, but I can't be quite certain. Anyway don't worry about 'losing' the THC during a green hit, it's still getting in your body. Even after the surface of the weed is charred, there are usually still trichomes that haven't been smoked yet, so just stir the bowl around a little. When all of the weed is just black ash the bowl is done, some people throw it out too early, or just keep smoking what is essentially a chunk of ash that probably won't do anything for them.
 
I'm definetly not worried about it. I smoke ALONE. I pack a new bowl each smoke. I'm just interested in how much THC gets vaporized.

People set their vaporizers to like 400-500 Fahrenheit and I'm positive the air from a flame is much hotter, therefore vaping more of the weed. I have a big bowl but only fill up about a 1/4 of it.

I am sure hits after the first get you intoxicated, but remember, there is more than THC in weed that gets you high. When I take the green hit it is a MUCH MUCH MUCH trippier hit then any I take after.

I'm not some idiot, I've read bluelight for years. I'm asking for your opinion on how much THC gets vaporized in the first hit, holding the lighter in the middle of the bowl (no cornering) and taking a normal hit leaving the weed brownish yellow. And I really believe at least 60% of the THC is gone at that point but am thinking more near 70%.

I am asking out of PURE interest, not for any reason, to justify anything, to save weed, NO other reason besides out of interest.
 
I wouldn't say the THC is lost. I'd say it's in my bloodstream and if anything it's been found.

60%-70% sounds reasonable to me. I tested it recently. One night I packed a full bowl in my glass spoon pipe (which is enough to get me pretty high) and smoked about half of it. I then saw how much was left unburnt, and put that amount of fresh weed in the next night and just smoked it all. Didn't get me anywhere near as high.
 
This is a bloody interesting thread. I've never really put much thought into the intense "headrush" I get after a big cone, but it all makes so much sense now. A simple idea that I'm sure many people (myself included until now) don't really think about.
 
I think that honestly the second hit is better because the bud burns better. It's not about THC there's more factors such as oxygen and size of hit, holding it in, etc.
 
Using a vaporizer I learned some things about concentration of THC and getting it out.

the same size hit gives varying numbers of vapor hits.

Schwag gives from 2 to maybe 6 vapor hits.

middies gives up maybe from 4 up to 12 occasionally

medical grade, sour diesel or whatever gives up to 18 or sometimes 20 or 22 even.

this gentle heating does any decarboxylating that you'd get in a regular pipe using a butane lighter but doesn't destroy anything.

People complain that the vaporizer is different, doesn't get you as high but in fact, it's getting more out and destroying none in the process.

It's more a matter of how many tokes do you really get when you vaporize instead of burning it.

Now, my point.

After using a regular pipe for years, and then using a vaporizer for years, I've come to believe that the first hits of a butane lighter lit bowl are the best, followed by significantly depleted hits and then a few at the tail end that have virtually no THC left in them. But we smoke them anyway.

I use the Silver Surfer and each "load" gives up the THC, the CBD's the CBG's and the THCV's at different points. So the first ones are nice, and the middle ones good and the "tails" as we call them taste foody but toasty and burnt kind of.

A volcano vaporizer would combine all these different tastes together in the bag as it vaporizes the whole "load" into one large bag for you to hit. So it would taste totally different than my silver surfer.

But just using the vaporizer and thinking about the different methods and knowing how the THC tapers off pretty quickly in the vaporizer which is certainly more gentle than actually burning the weed, leads me to suspect that:

first hits are great, middle two are still ok, tails have nothing or so close to nothing that I refuse to smoke them.

The best way if you're going to burn it is one hits.
 
I can tell that with the volcano vaporizer, it varies still.

First balloon is very tasty (more aromatic compounds being vaporized), and won't get you really "high". There are some effects but they are very subtle.
Second balloon gives more of a head high. Tastes "regular" in the sense that it resembled smoking weed.
Third balloon is more earthy. You taste that all the aromatic compounds are gone.

Now, about the THC loss:

With a vaporizer there is obviously none, but back when I just had aquired my vaporizer, I did some "tests".

I put 50mg Haze weed in the chamber.
I vaped this at 185°C. This should release all THC and maybe a small part some other components.
After 1 balloon I had 41mg left, after the second balloon 39mg, after the third balloon 37mg. So on average let's say 5mg/balloon.
After 3 balloons the thc was more or less gone.

I keep whatever I have vaped already at 185°C seperate.
Later I vape this at 205°C, at night, to chill.
Later still, I vape this at 225°C, to go to sleep.

152mg vaped at 205°C left me with 135mg after 1 balloon.
This 135mg I vaped at 225°C and left me with 120mg.

We are all scientists ! ;)
 
I can tell that with the volcano vaporizer, it varies still.

First balloon is very tasty (more aromatic compounds being vaporized), and won't get you really "high". There are some effects but they are very subtle.
Second balloon gives more of a head high. Tastes "regular" in the sense that it resembled smoking weed.
Third balloon is more earthy. You taste that all the aromatic compounds are gone.

Now, about the THC loss:

With a vaporizer there is obviously none, but back when I just had aquired my vaporizer, I did some "tests".

I put 50mg Haze weed in the chamber.
I vaped this at 185°C. This should release all THC and maybe a small part some other components.
After 1 balloon I had 41mg left, after the second balloon 39mg, after the third balloon 37mg. So on average let's say 5mg/balloon.
After 3 balloons the thc was more or less gone.

I keep whatever I have vaped already at 185°C seperate.
Later I vape this at 205°C, at night, to chill.
Later still, I vape this at 225°C, to go to sleep.

152mg vaped at 205°C left me with 135mg after 1 balloon.
This 135mg I vaped at 225°C and left me with 120mg.

We are all scientists ! ;)


Not bad, not bad at all man. Way to actually do an experiment of that kind right, and an excellent idea with the temperature and time of day :) not baaaaad
 
HELL YES. I am glad to have some people finally see what I am saying and agree with me that at least 60-70% is *found:)* in my bloodstream after the first hit hahah. You have to think about the vaporization point and the temperature vaporizers are set to and then think about how hot an actual FLAME on top of your weed is. And YES, the way to do it is to compare that awesome fucking head rush after the green hit of some fucking dank and how sorry the next few hits are compared.

Eh, I doubt holding it in on the second hit is going to give anywhere near the same THC content as the first hit, which is what this thread is about. Their are other chemicals in weed giving me a psychoactive effect, I stated the size of hits succeeding the first hit would be the same size, and oxygen really? Don't think about it too much. Go grab yourself a bong, or a bowl. Load it up and take that green hit. Go do shit and sober up. Take the second hit. It won't be nearly as satisfying and you'll be wanting to throw a little fresh green on top if your trying to achieve any kind of similar high as the first smoke. Because most of the THC is gone. Don't corner the bowl, and take a normal hit.
 
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