I disagree, I have a high nicotine, 100% VG juice (cotton candy) that doesn't turn brown at all. That is, not more brown than it's initial color. Except on the coil as gunk or "crude". My experience when my liquid turns brown/black was with juices that are very sweet (carmalization). G-Bear from Gotvapes does it. On the other hand some sweet juices don't change much (IE cotton candy). From my experience I believe it's the sweetner used. If you research Stevia extract, it's know to not carmalize like straight suger does in baking. These are just my musing without science getting involved. I don't believe nicotine staining from analogs is solely from nicotine but more from the burning of plant material as mentioned.
Im not using any sweet juices, and its not that the whole juice changes color but for example, in Dual coil carts, its the filler near the coil and on top of the air tube.
In 510T it happens near the around the metal pin, and then it colors the juice near the exit hole in the cart, it looks like small drops (imagine oil drops in water glass), after some time it mixes with juice and whole juice changes color
Maybe depending on the liquids? I have some clear Lime liquid in both 0 nic and 10 nic. The 10 nic leaves a brown residue and the 0 leaves none. I also have some very sweet liquids with very low nicotine that leaves a minimal amount of discolorations.
ok with that picture right there i would say your discoloration is from the top bit of juice flows back over the coil and into the inside taking the color from the coil with it.
if the tube was shorter and the mouthpiece touching the top seal you might not get that effect.
FYIs,
I cleaned the VISION in question today, the one with the juice that turned brown. All it took to wash the brown out was repeatedly filling and dumping it with warm water. Then to clean the coil portion I let 'er rip while dripping drops of carbon-scrubbed water on the coil until all the particulates were gone. A nice black/grey fluid came out from the air intake and it looks good as new. I switched flavors and with this juice there's no reaction (my finger distorts the color of the fluid in this picture but it's the same gotvapes VISION clearomizer I posted in this topic earlier to show the lack of brown after a full tank)
Exactly - the areas affected are in the proximity of the smoke. The teeth obviously should be the worst as the tar (it isn't all captured by the filter) is drawn over them. The first couple pages on nicotine stains and skin suggest the problem is with stains on your hands. This makes sense, second-hand smoke pours over your hands while holding a lit cigarette. It looks to me like nicotine is just a convenient way of saying "tobacco-smoke." *I MAY BE WRONG* Also, it may be that nicotine *also* leaves a brown stain. My point is simply that you're going to get a lot of that brown stain with any plant, not just those containing nicotine
Perhaps it is the nicotine that turns brown in the cartomizers; I just don't want that brown to be equated to the brown that comes from cigarettes because even if nicotine is one of the brown colors it would be only one of many
It's the nicotine alright...My teeth were looking good for awhile when i started vaping. Now they have stains from vaping 36 for a year. down to 30mg now. lol
I still doubt that it's the nicotine. Only the lowest nicotine (18mg) of the four juices I've tried had any of this effect
Just my zero point zero two US
I know this is off topic, but Im see you mention 100%VG juice. Where can I get vg carts, and the best tobacco flavor VG juice? T%hanksIm not sure its gunk becuase its all around the air tube, for example in dual coils i see it on the top of the tube (near the mouthpiece, gunk cant go that high) and around the coils, but not on the coils
its not sticky like real gunk, as i said can be cleaned with juice...
maybe its oxidization or maybe its the nicotine, i just hope its not something dangerous LOL
happens more with 100% VG juice
Seriously, how often you vape that high of nic.? Like compared to analogs, I often worry about nic. I have smoked 3 pad for like 30yrs before quitting and started vaping and still now I vape anything over 6mg and I get sick.Do you want to get a heart attack, why Vape 36 or even 30? Even 24 is too much IMO 16 to 20 should be enough..
So the discoloration is not dangerous unless the heated nic is very concentrated.. hmm