ELiquid Concentration - Do All Manufacturers Know What They Are Doing?

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HobsCreek

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Mar 31, 2014
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I wanted to post this in the eliquid forum, but I guess you have to post 5 threads here first. I may re-post it there if I don't get any answers here. I recently decided to give up smoking for good, and switch to an electronic cigarette. After doing a bit of internet research, I came across this site, which has given me a lot of useful information.

My reasons for using e-cigs is really just to replace regular cigarettes. The most important part of this switch for me is finding out what strength eliquid I should use, and how much liquid I should intake each day to find the happy balance between nicotine sickness and nicotine withdrawal.

I purchased a 24 mg liquid from a local shop near me that makes their own liquid, going with the maximum amount because I wanted to make sure that I could switch completely off of cigarettes on day 1 with no withdrawal symptoms. I started with a 4 mL vial in case I wanted to lower the concentration. That same night, I was reading and subconsciously taking drags off the setup that I purchased, without really paying attention to how much I was doing it. I was probably taking 1 or 2 drags per minute over the course of about an hour, with my voltage turned up to the highest setting (4.8). At this point, I started getting what felt like a panic attack....I could feel my heart beat increase, and got quite light-headed. After it passed (about a minute or two), I decided that I had probably tried too high of a nicotine concentration. I went back to regular cigarettes until I was able to go back to the vapor shop 2 days later.

When I went back, I wasn't sure if I wanted to try 18 mg or 12 mg. I decided to ask a few questions, to clear up a few things I had assumed the first time. One of these assumptions was that the amount I had purchased was actually the concentration per mL (ie, 24 mg = 24 mg/mL). I asked the first person I talked to if the amount is the concentration per mL. He kind of gave me a blank stare at first, and then said that it's the actual amount that goes into the vial. There was a setup that showed the different vial volumes they offered nearby, so I used that to clarify if I understood him correctly. The sizes range from 2 mL to 100 mL. I asked him, "So if I ordered a 100 mL vial of 24 mg nicotine content, you would put 24 mg in the 100 mL vial; If I ordered a 2 mL vial of 24 mg nicotine content, you would still put 24 mg in the 2 mL vial?" He said yes.

Now I started to get a bit worried....it doesn't take a genius to realize that with varying volumes available, it's the concentration that determines the strength of the eliquid, not the mass of nicotine that is mixed in the vial. Some very simple math shows that if the shop employee I was talking to was correct, if I purchased the 2 mL vial the concentration would be 12 mg in every mL. If I purchased the 100 mL vial, the concentration would be 0.24 mg in every mL.....or 50 times more dilute than the 2 mL vial. I knew this couldn't possibly be correct, so I went back and forth with him for another minute, eventually determining that this guy had no clue what a concentration was. He really thought that every vial of the same strength, no matter the volume, had the same mass of nicotine.

I knew this couldn't be the case...I just had to ask a manger or owner. I noticed that one older gentleman was telling people what to do and observing the employees, so I asked him the same question. At first, he told me the same thing the first employee had said. If you order 24 mg, no matter the volume of the vial, 24 mg of nicotine is in the vial. With a little pressing and visual demonstration from me though, I think he realized the absurdity of that claim. However, what he told me next surprised me even more. I asked if the 24 mg was distributed throughout the entire volume of the vial, regardless of the vial volume, and he told me "24 mg is the amount you get from each hit".

What?? I had done a little research on nicotine absorbed from smoking cigarettes before buying the ecig, and if what he was telling me was correct, every drag from my 24 mg liquid was roughly equivalent to smoking about 25 cigarettes. Again, this couldn't possibly be correct....I gave up, bought 12 mg liquid, and went home.

This whole experience actually has me afraid of using the eliquid that is available. There does not seem to be much regulation that manufacturers must follow, and the fact that no one in the shop I went to that MAKES THEIR OWN LIQUID understood the simple concept of "concentration" frightens me. When you smoke a pack of cigarettes a day, you know that you are getting a fairly consistent amount of nicotine daily, due to the strict regulations. It is possible to overdose on nicotine....and if a manufacturer miscalculates and puts an extremely high amount of nicotine in a vial, I don't know how I would tell. I really want to switch completely over to ecigarettes, but this experience has me wondering if I should wait until the business is a bit more regulated.

Any feedback would be appreciated...particularly anyone who knows the quality control philosophy of some of the more reputable liquid dealers. I'm aware this shop may not be indicative of all liquid shops, but it actually has a really good reputation around where I live. I just blows my mind that they are making a solution of a potent drug, selling it, and knew so little about the questions I asked.
 

Burn_notice_fan_NY

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24 mg does not change. Think of it as a recipe with nicotine as an ingredient. You start with the basic recipe and change the amount based on the size of the bottle. A 12 oz can of soda has the same caffeine content as a twenty oz, liter and two liter size. The caffeine is based on serving size and not the total amount of it in a container. The ratio of each chemical changes when switching sizes of the container but the ratio of each chemical to one another remains the same.

In regards to the ejuice, 24 mg means that no matter the size, 2.4% of the solution will be nicotine.
 

HobsCreek

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Mar 31, 2014
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Exactly...as you said "you change the amount with the size of the bottle". This ensures that all sizes have the same concentration (2.4%, or 24 mg per mL. 24 mg is "the amount". But, as I said above, both employee and manager of the shop were saying they did not change the amount....that they put 24 mg in regardless of the volume of the vial. 24 mg is always 24 mg....that amount never changes. If you put 24 mg into a smaller volume the concentration (%) will be higher than in a larger volume.
 

djsvapour

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I enjoyed your post. However, I am confused by most of it.

ALL e-liquid made by responsible people has an accurate (or very close) concentration of nicotine.

Nicotine strength is expressed most commonly as either a number (24mg) or a percentage 2.4%. Those should remain constant regardless of the volume of liquid.

Anything other than this is illogical. Worrying about how much nicotine a person might add to liquid is not that scary, as a mathematically challenged worker will be mixing off a chart/calculator. Human error is possible (and I can see your point) but for the most part only complete stupidity or deliberate incorrect ratios are a problem. Nicotine base liquid is not cheap, so I can see people cutting corners, maybe??

Incidentally, 1 or 2 puffs every minute of 24mg liquid is more than I would vape in a day, comfortably. Sorry to hear about your trouble.

As for somebody saying 24mg per puff, well that's just ignorance.

As vaping grows (is allowed to flourish, we hope) there will be more and more instances of incompetence. Do I worry? Yes.
Do we need government to step in a hand the industry over to big tobacco/pharma... No.
 

djsvapour

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Exactly...as you said "you change the amount with the size of the bottle". This ensures that all sizes have the same concentration (2.4%, or 24 mg per mL. 24 mg is "the amount". But, as I said above, both employee and manager of the shop were saying they did not change the amount....that they put 24 mg in regardless of the volume of the vial. 24 mg is always 24 mg....that amount never changes. If you put 24 mg into a smaller volume the concentration (%) will be higher than in a larger volume.

You know, what I suspect is this. They will have large vials of premixed, unflavored liquid. One of them will be 24mg liquid, made from nicotine base, PG and VG (to their chosen ration)... If they "mix" as I have seen "live" in a shop, they will simply pour x amount of that liquid into the bottle, add y amount of the flavour, give it a shake and sell it to you.

(something like that, anyway... :) )
 

HobsCreek

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Mar 31, 2014
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That's what I figured...they probably have a chart that tells them how much to put in based off the amount of nicotine and the volume.

It still is frightening to me that the people who made my solution don't understand the difference between a concentration (2.4%, or 24 mg PER mL) and a mass (24 mg)...and that the concentration is the important factor in the creation of these solutions. I am a chemist by trade, so I catch things like that.

I'm sure that when someone says the bottle is "24 mg", that is understood to be "24 mg/mL" (or 24 mg in every milliliter), but I still think it's important that the person preparing it understands this distinction.
 

yzer

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24mg nicotine liquid should be 24mg of nicotine per ml. That means a 30 ml bottle of e-liquid will contain 720mg of nicotine.

I wouldn't worry if the store clerk doesn't understand how to mix e-liquid unless this is the same person who does the mixing (God forbid).

I smoked a pack and a half a day of Camel Blues before I quit. That was a few cigarettes per hour. I wasn't taking two puffs per minute continuously. 24mg e-liquid was a good match for me. I spent about twice the amount of time vaping that I spent smoking. That amount of time decreased after I got better at vaping.

The retail business is filled with a lot of idiots, just like every business. There are plenty of good shops, too. Find a shop you trust.

Myself, I have a nicotine base supplier I trust. I mix the e-juice myself.

Incidentally, the nicotine level in cigarette tobacco sold by major brand tobacco companies is maintained artificially. Washing tobacco with recycled water containing concentrated nicotine controls the nicotine level. This allows tobacco companies to use use filler and low grade tobacco in their cigarette blends.
 
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cbrite

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I think maybe it was more a misunderstanding than anything. Not everyone is "smart" about numbers when they hear them, even though they may know exactly what they are doing and think they are saying it back correctly. This (Thanks to djsvapour)--

"Nicotine strength is expressed most commonly as either a number (24mg) or a percentage 2.4%. Those should remain constant regardless of the volume of liquid,"

is most likely the basis for the lack of communication between you and the guy at the store.
 

Stosh

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The store is a bunch of idiots, explaining it rather badly. "24" is simply 24 mg PER mL, so a 1 mL bottle has 24 mg, a 10 mL bottle contains 240 mL, but still is 24 mg PER mL.

Regarding using the liquid, listen to your body, everyone's tolerance is different. If you're craving, jonesing a smoke, use a bit higher or vape more often. If you get a headache, nausea, dizzy, hiccups, then lower the level a bit or just put your PV down for an hour or so, until you feel a craving for a cigarette again.
 

ppeeble

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More than likely the mixer was using a solution of 24mg (2.4%) base. Pouring out 1ml or 100ml will not change the percentage of nicotine in the base. A simple case of breakdown in communication more than likely.
Off topic a bit.... I visited the two newest vape shops that have opened near me today. One shop sold only eGos and clearomisers (they hadn't heard of a carto-tank or vv etc), i chatted for a bit before leaving forever. The lack of knowledge was staggering to me.
The other shop sold juice in 0, 11 and 24mg only. When i asked for 18mg they told me that no-one uses that strength. They also told me that they buy in their base at 24mg. Again i left the shop forever.
Both shops were selling home-made juice at £5 for 10ml.
 
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