• Members of the previous forum can retrieve their temporary password here, (login and check your PM).

How to measure dosage when vaping?

Carl_Explorer

Rising Star
Joined
Jan 13, 2026
Messages
7
Merits
250
I am a newbie and used an a e-liquid DMT cart, 1ml-700mg for the 1st time this week.
It immediately occurred to me that dosing is quite difficult: when you inhale once, how much DMT actually are you inhaling??
I mean, I do know that the cart used is filled with 1ml-700mg of DMT, but if I am to follow the wise advices for beginners (aka start a first use with 15-20 mg, not more), then my question would be: how much tokes of the above mentioned cart are the equivalent of 20 mg ingested?
If anybody could enlight me that would be much appreciated - thank you 🙏
 
The only way i know of is:
- weigh the cart
- use a stop watch to take a 5 sec toke
- weigh the cart again
- divide difference in weight by 5, then adjust for strength of carrier

e.g. 1ml PG = ~1.036g + 700 mg dmt = 40.3 % dmt by weight
5 sec pull consumes 50mg cart or ~20mg dmt
Vape pulls ~4mg dmt per second

Do a few different measurements at a few different durations to collect a good range of data points to average out for accuracy
 
I use a 700mg to .3ml PG vape all the time.
So, for me, at 100kg here is the breakdown:
1 X 5-6 SECOND pull is my handshake dose. I can feel it, but it is sub psychedelic. Mostly body load, like coming down from schrooms.
2 X 5-6 second pull is a mild dose. Can be enjoyed as a mini chill.
3X 5-6 second pull is a strong dose. This should be very noticeable, strong effects, but not necessarily fully out of body.
now, for breakthroughs, I go 3 X 10-12 seconds for a total pull time of 30+ seconds. Or 2 X 15-16 seconds if you can handle it.
essentially, total of 5 seconds is a handshake, 10 seconds a mild dose, 20 a large dose, and 30+ a breakthrough.
You can just as easily ''lean'' into it as well. So do a 3-4 seconds pull, hold it. Do another, hold it, keep going till you feel you are high enough. Not as easy for a full blown breaktrough, but superb for meditative doses.
Hope this helps!
P.S. I use a yocan uni 3.0 at 4.0 volts, and I get 10-20 sessions on a cart depending on my huffage.
 
Last edited:
The only way i know of is:
- weigh the cart
- use a stop watch to take a 5 sec toke
- weigh the cart again
- divide difference in weight by 5, then adjust for strength of carrier

e.g. 1ml PG = ~1.036g + 700 mg dmt = 40.3 % dmt by weight
5 sec pull consumes 50mg cart or ~20mg dmt
Vape pulls ~4mg dmt per second

Do a few different measurements at a few different durations to collect a good range of data points to average out for accuracy
That's a very clever way- math dont' lie- thanks!
 
I use a 700mg to .3ml PG vape all the time.
So, for me, at 100kg here is the breakdown:
1 X 5-6 SECOND pull is my handshake dose. I can feel it, but it is sub psychedelic. Mostly body load, like coming down from schrooms.
2 X 5-6 second pull is a mild dose. Can be enjoyed as a mini chill.
3X 5-6 second pull is a strong dose. This should be very noticeable, strong effects, but not necessarily fully out of body.
now, for breakthroughs, I go 3 X 10-12 seconds for a total pull time of 30+ seconds. Or 2 X 15-16 seconds if you can handle it.
essentially, total of 5 seconds is a handshake, 10 seconds a mild dose, 20 a large dose, and 30+ a breakthrough.
You can just as easily ''lean'' into it as well. So do a 3-4 seconds pull, hold it. Do another, hold it, keep going till you feel you are high enough. Not as easy for a full blown breaktrough, but superb for meditative doses.
Hope this helps!
P.S. I use a yocan uni 3.0 at 4.0 volts, and I get 10-20 sessions on a cart depending on my huffage.
Very informative and clear, that helps thank you; actually I am at the 1x 5-6 second pull and the effect is quite similar to what you describe. But, to make sure I understood, you pull from a 700mg in a 0.3 ml cart, don't you? So in my case, as I am using a 700mg in a 1ml cart, one 5-6 second pull should be 3 times more powerful than your's, right? Or not?
 
you pull from a 700mg in a 0.3 ml cart, don't you? So in my case, as I am using a 700mg in a 1ml cart, one 5-6 second pull should be 3 times more powerful than your's, right? Or not?
Yours is weaker: 700mg DMT per 0.3ml is equivalent to 2.33g DMT per 1ml. So each second inhaling from @Qoniaq's vape would be equivalent to 3.3 seconds of yours, all else being equal.
 
Very informative and clear, that helps thank you; actually I am at the 1x 5-6 second pull and the effect is quite similar to what you describe. But, to make sure I understood, you pull from a 700mg in a 0.3 ml cart, don't you? So in my case, as I am using a 700mg in a 1ml cart, one 5-6 second pull should be 3 times more powerful than your's, right? Or not?
You are using the same as me. My cart holds a total of 1ml (same as you) of volume. In order to make a full cart, you use 700 mg of spice to 0.3ml of PG. That fills up the cart. Don't forget the spice also has volume. This 2:1 (ish) ratio is my daily go-to. I have gone higher and lower concentrations before, but this is a great ''all-around'' concentration. you can use it recreationally, or deep. Higher concentrations are more 'one and done' hits. Less room for fine tuning your altitude. Let us know how it goes!
PLUR
Q
 
The cart holds a total of 1ml of volume. In order to make a full cart, you use 700 mg of spice to 0.3ml of PG.
If that's the case, then @Carl_Explorer forget what I said. I don't use carts so I wasn't aware of how the volume changes, I don't measure it.

But, are you sure of that, @Qoniaq? Do 0.3ml of PG with 700mg DMT dissolved actually have a volume of 1ml, or are you talking about weight?
 
If that's the case, then @Carl_Explorer forget what I said. I don't use carts so I wasn't aware of how the volume changes, I don't measure it.

But, are you sure of that, @Qoniaq? Do 0.3ml of PG with 700mg DMT dissolved actually have a volume of 1ml, or are you talking about weight?
It's the teeniest bit under completely full with 700mg to .3ml pg. I use CCEL ceramic 1ml carts.
 
You are using the same as me. My cart holds a total of 1ml (same as you) of volume. In order to make a full cart, you use 700 mg of spice to 0.3ml of PG. That fills up the cart. Don't forget the spice also has volume. This 2:1 (ish) ratio is my daily go-to. I have gone higher and lower concentrations before, but this is a great ''all-around'' concentration. you can use it recreationally, or deep. Higher concentrations are more 'one and done' hits. Less room for fine tuning your altitude. Let us know how it goes!
PLUR
Q
Now I finally got it: 700mg spice + 0.3 ml PG and we have more or less 1 ml in a cart. Makes sense and explains why the effects you described for 1 pull 5-6 sec (body load aka after mushrooms) was exactly what I felt (but only for few minutes of course as effect duration much much sorter than mushs). Now I am beginning to walk on a documented area. Thanks again 🙏
 
Now I finally got it: 700mg spice + 0.3 ml PG and we have more or less 1 ml in a cart. Makes sense and explains why the effects you described for 1 pull 5-6 sec (body load aka after mushrooms) was exactly what I felt (but only for few minutes of course as effect duration much much sorter than mushs). Now I am beginning to walk on a documented area. Thanks again 🙏
yeah man!!! happy hyperspace!!! don't forget your breath. it is key...
 
I use a 700mg to .3ml PG vape all the time.
So, for me, at 100kg here is the breakdown:
1 X 5-6 SECOND pull is my handshake dose. I can feel it, but it is sub psychedelic. Mostly body load, like coming down from schrooms.
2 X 5-6 second pull is a mild dose. Can be enjoyed as a mini chill.
3X 5-6 second pull is a strong dose. This should be very noticeable, strong effects, but not necessarily fully out of body.
now, for breakthroughs, I go 3 X 10-12 seconds for a total pull time of 30+ seconds. Or 2 X 15-16 seconds if you can handle it.
essentially, total of 5 seconds is a handshake, 10 seconds a mild dose, 20 a large dose, and 30+ a breakthrough.
You can just as easily ''lean'' into it as well. So do a 3-4 seconds pull, hold it. Do another, hold it, keep going till you feel you are high enough. Not as easy for a full blown breaktrough, but superb for meditative doses.
Hope this helps!
P.S. I use a yocan uni 3.0 at 4.0 volts, and I get 10-20 sessions on a cart depending on my huffage.
Last question if you will: you said you use a yocan at 4.0 volt. I read somewhere that this is too much and can burn the spice, which must ideally be heated around 160-170 C°. But with 4V, you should be above, no? I use a v-mod at its lowest of the 3 setups available: 2.6V (I also read that voltage will heat at +- 160-170 C°).
 
for me, I find 3.8 to 4.0 to be fine. I like a strong flavor, that heavenly taste....yum! it does not burn it. at least not in my experience. your impedance should show between 1.4 and 1.7 ohms or so.
 
I use a 700mg to .3ml PG vape all the time.
So, for me, at 100kg here is the breakdown:
1 X 5-6 SECOND pull is my handshake dose. I can feel it, but it is sub psychedelic. Mostly body load, like coming down from schrooms.
2 X 5-6 second pull is a mild dose. Can be enjoyed as a mini chill.
3X 5-6 second pull is a strong dose. This should be very noticeable, strong effects, but not necessarily fully out of body.
now, for breakthroughs, I go 3 X 10-12 seconds for a total pull time of 30+ seconds. Or 2 X 15-16 seconds if you can handle it.
essentially, total of 5 seconds is a handshake, 10 seconds a mild dose, 20 a large dose, and 30+ a breakthrough.
You can just as easily ''lean'' into it as well. So do a 3-4 seconds pull, hold it. Do another, hold it, keep going till you feel you are high enough. Not as easy for a full blown breaktrough, but superb for meditative doses.
Hope this helps!
P.S. I use a yocan uni 3.0 at 4.0 volts, and I get 10-20 sessions on a cart depending on my huffage.
Your djuice mix is

700mg D
0.3ml PG

?

So little PG? does it even dissolve in such a small volume?

My first mix was 500mg + 1.5ml PG + 1ml VG which was not very strong.

Now I tried 500mg + 1ml PG + 0.5ml VG

But your formulation is much stronger I guess.

Geekvape aegis legend 5 non rebuild
 
Your djuice mix is

700mg D
0.3ml PG

?

So little PG? does it even dissolve in such a small volume?

My first mix was 500mg + 1.5ml PG + 1ml VG which was not very strong.

Now I tried 500mg + 1ml PG + 0.5ml VG

But your formulation is much stronger I guess.

Geekvape aegis legend 5 non rebuild
I heat the PG in a mini beaker placed in a pyrex jar of boiling water. I add the deemz to it, and mix it around with the tip of the syringe. Take about 4 -5 minutes and it completely dissolves. Never had an issue. Hope this helps. Sorry it was long to respond, I have been in the far north for a whiloe with work, and we all had to share the starlink, so I just went offgrid instead. It was glorious!!
 
P.S. Just switched to a Yocan Ziva 2.0. The magnetic connector on the Uni can sometimes come unseated, and this resets the puff timer, so I sometimes either cut a session short, of stop completely as I do not know how much I've taken. When I doubt, I abort. The ziva is a screw in and it has an ''auto'' mode, where it just blows the vapour out continuously. You can fire 20 seconds of it into a holding vessel and then take it all in at once. Magnificent.
In fact I just wrote to Yocan with the folowing idea / request: I had to stop short of telling them it's specifically for deems.


Hello Yocan team,

I’m a longtime user of many Yocan devices, including several Uni 3.0, a few Kodos, two Orbit units, and I recently ordered the Ziva 2.0.

I wanted to share a feature-set idea that I think could genuinely differentiate a future “smart” battery platform, setting it apart from all the competition.

What many advanced users actually want is not more gimmicks or cloud production, but more precision, consistency, and repeatability. A scientific instrument geared towards research and logging of exact numbers, times, voltages, and trends.

The ideal platform, in my opinion, would include:

  • Direct screw-in cart connection (no magnetic adapter)
  • Protected/internal cart body
  • No direct mouth contact with the cart itself (better cleanliness and leak protection)
  • Large front facing OLED display
  • Large, easy-to-read timer numbers
  • Button activation
  • Precision voltage control
  • Precise real time impedance
  • Live puff timer that stays on screen until the next puff.
  • Data log of last 10 puffs with voltage and puff times
  • User-programmable puff duration cutoff
Example:

  • set device to 8 seconds
  • set voltage to 2.7V
  • hit button
  • battery automatically stops firing at exactly 8 seconds
Another extremely useful feature, as mentioned, would be puff history memory:
Ability to review the last 10 pulls:

  • duration
  • voltage used
  • timestamp/session order
A possible “nice to have” feature could also be optional cart identification memory:
Example:

  • Cart A / Cart B / XYZ etc.
  • battery remembers total pulls and session history associated with that specific cart
Many experienced users care less about cute animal shapes and more about repeatable session consistency, precise thermal delivery, and long-term comparison between sessions and hardware setups. Advanced users will often weigh their carts before and after sessions to calculate total intake and allow precise notes and logs. Especially users that created their own mixes and juices. This helps to know what the total pull time on a specific cart was at specific voltages, ability to compare delivery by voltage and puff times, accurately determine intake in mg per second, etc. In short, a scientific delivery device. Something for the data nerds out there (like me!), and marketed as such.

Large display numbers would also be very helpful, since users may want to quickly read the timer during an immersive session without needing to focus on tiny text or menus. Not a display with nice animations, but one that is data heavy and easy to read.

The Ziva 2.0 especially caught my attention because it seems to move toward a more stable and controlled architecture compared to magnetic connector systems like the Uni; that can be knocked off-seat, and reset the timers, etc. The auto mode on the Ziva 2.0 is also a very interesting idea — combined with a programmable timer cutoff, it already feels halfway toward controlled timed-session functionality.

Your products already have:

  • Large OLED displays (like the Uni 3.0)
  • timers
  • smart chipsets
  • telemetry
  • concealed cart systems (like the Ziva)
So this feels like a natural evolution of the platform.

I think there is a real niche for a precision-oriented field instrument focused on serious session consistency, repeatability, testing, and comparison rather than novelty features or cloud production.

If Yocan ever explored a platform like this, I would gladly be available to provide testing feedback, user experience comments, and real-world usage observations.

Thanks for making great devices and for considering the idea.



I would love if they made this. It's what Deemers need.
Q
 
Hi, so I read through the replies and while I have all of the necessary items to ensure a proper cartridge fill, I only have a scale that goes to two decimal places. If I’m wanting to fill the tank on an Aegis Solo 3 by GeekVape with a 3:1 ratio using my spice yield of just under .75g (sitting at .68g), what would be your best advice? Let me list the items I currently have:

1x clean shot glass

1x GeekVape Aegis Solo 3 box with a top down tank, Ceramic core and medical stainless steel internal parts.

4x 18650 flat top batteries

1x dual port charger for said batteries

2x bottles of USP Food grade Propylene glycol

1x double boiler (if that’s appropriate for my needs)

1 x sealed plastic container with my .68g of spice inside

1x scale that goes to the hundredths, but sadly not a milligram scale.

And lastly,

1x pipettes tot transfer juice to the tank on the solo 3 battery.

Knowing my inventory, what is your best advice to make a tank that will be strong enough to send me off in one or two pulls. (I’m 44 and a seasoned psychotnaut)
 
Back
Top Bottom