Selecting the correct juice density.

[Al Bundy]

Originally Posted by Jaaxx

OK, a little confusing.
Assumption - You want to get 14mg (or less) a day of nic maximum.
Unknowns:
1. Amount you will actually vape per day.
2. Strength of liquid you need to use.

You can solve for one unknown, but not both. You have to pick one. "I will vape 2mL per day, what strength do I need" OR "I like 24mg liquid, what is the max mL per day I can vape."

This is the problem with your method. You're literally "guessing" at one of the unknowns based on nothing. The puffs can be estimated with a simple count or by measuring the cross-sectional distance a puff consumes on average and therefore there is no guessing. My method at least produces an estimate and is solvable. Sorry, but your method doesn't work mathematically or statistically.

I think it's important this gets hashed out because someone using your method to estimate the juice density is going to grossly overestimate because of the guessing involved and in turn increase the amount of nicotine intake and tolerance over time.

[Jaaxx]

Please define "puff" in volumetric terms as it relates to nicotine consumption.

Most users will find that they will vape differently than they smoked (more or maybe less "puffs" per day.) It's not the same thing, never will be as much as we would like.

If you are replacing one method of nicotine delivery with another, just make sure you are not increasing your maximum possible consumption unless that is your intention.

[Al Bundy]

Originally Posted by Jaaxx

Please define "puff" in volumetric terms as it relates to nicotine consumption.

Take the consumable length of a cigarette, divide it by 12 to get 12 cross-sectional pieces. Each piece would be a cylinder, volume of a cylinder is pi*r^2*h. I don't know the dimensions of a cigarette, but you can plug and chug to find the volume of each. Or if you'd like, you can take the length of the entire cigarette (h) and radius (diameter/2) to find the entire volume and divide that by 12.

Each cross-sectional cylinder under assumed uniform nicotine density, or by estimating the mean of the nicotine densities from the sample size of 12 cross-sectional cylinder, should sum on average to the amount of nicotine that would be delivered.

Your choice.

[Walrus]

I don't think a 'puff' can be defined accurately

Sometimes i take a quick drag. Other times I take a nice slow draw like from a cigar or pipe. Depends on the mood.

[Al Bundy]

Oh duh, since the 12 puffs is roughly equivalent to 1 cig, the juice density amount would be literally the amount of mg delivered by the cig * 10.

So if you smoke a cigarette with .7 mg of nicotine in it, then your juice density equivalent is .7*10 or .7 mg / .1 or 7 mg juice.

Oh and simply rewriting the rough equation you can figure out how much nicotine would be the equivalent amount.

So if you're using say 18 mg juice, 18*.1 = 1.8 mg cigarette equivalent.

If you smoke say a pack a day at 1.0 mg, that's 20 mg total, but you're vaping the equivalent amount of nicotine of 36 cigarettes per day. That's nearly double the amount.

[Al Bundy]

Originally Posted by Walrus

I don't think a 'puff' can be defined accurately

Sometimes i take a quick drag. Other times I take a nice slow draw like from a cigar or pipe. Depends on the mood.

"On average" means that over time the puff will approach some measure of central tendency. It can be defined on average, but vary from person to person.

[Al Bundy]

OK, so my rough equation for selecting juice density is:

(mg nicotine in your analog) * 10

[Kate]

Puff counts vary a lot and are probably the least accurate way to calculate nicotine intake.

Draws/puffs per ml

Can someone help me with the math...???

Nicotine safety

[HK45]

Jaaxx,

I'm not a math wiz (you guys lose me about halfway through your equations), but just using common sense your ml per day method seems more reliable, in a really unreliable equation as you pointed out (absortion rate, etc.). The "puff" method seems untenable because everyone "puffs" differently! Some very shallow, some very deep, and that is not taken into acount in this equation.
IMO the only measure is how much has been consumed at the end of the day!

Note: I've been using 36 mg since day 1 because I was a heavy smoker and your comment about accidentally INCREASING my tolerance really concerns me. Also, especially in the beginning, I would overfill a cart a get a mouthful of fluid. I wonder how much of that is quickly absorbed by the mucous membranes in the mouth?

[Nuck]

Until someone comes up with an accurate value for how much of the nicotine is lost during vaporization, how much is lost in the air flow during intake and outtake and ultimately how much is absorbed into the blood stream during the whole process, the equations are pretty damn silly. Jaaxx posted a simple method that is about as accurate as you're going to get until real data is available.

Start low..raise until you feel your need satisfied. Always use the lowest possible dosage to satisfy your addiction.