Removing excess colorings from e-fluid?

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First off, hello, I've been lurking here for over a year, but I finally have a question that doesn't appear to have been answered already, so here goes:

I finally found a delicious diy chocolate flavor that I've been using for a couple months now, but the stuff is opaque black from all of the damned coloring they add. The e-fluid I make with it (along with some other blends I made with other dark flavorings from the same company) seems to gum up my coils after only 1-2 tanks. The coils I use are very common and have seen a big quality increase in the past few months, so I've been able to make a coil last a few weeks instead of a few days... but when I'm using the darker mixtures, they still gum up really quickly... so I strongly suspect the colorings.

Anyone know a good way to filter out the coloring without wasting much of the flavor? I was thinking about using some sort of gravity siphon, by taking some sort of filtering medium, rolling it up and sticking one end in the full bottle, and sticking the other end into an empty bottle positioned a few inches lower. I figure the filter will slowly wick up the liquid, gravity will direct it to the lower bottle, and the color particles will mostly remain stuck to the filter.

Anyone think this sounds practical? And if so what should I use as the filter? Maybe some spare silicone wick? What about chromatography paper? That stuff is designed to capture colorants, but there's so many different kinds... I don't want to order some only to find that it either can't trap the color particles, or just gets gummed up and stops wicking the fluid from one bottle to the other.

Any advice is greatly appreciated, TIA!
 

rondasherrill

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I would think your best bet is to use a vacuum filtering setup of some sort. Maybe draw it through a filter into a syringe.

eta: or reverse that suggestion and put a bit of filter media in the syringe and push the liquid through it with the plunger

Interesting thought. Would that literally only trap colorings? I haven't vaped a flavored bottle of e-liquid in like 2 years because I got tired of the stupid wicks getting all gross. I mix my vg nicotine base with enough pg to get the nicotine level where I want it, with 3% menthol, and that's it.
 

tchavei

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I'm anti colorings also... besides... when you get a premixed far east sourced menthol juice, one starts questioning/worrying why in earth the liquid is dark yellow when none of its "official" components have any colorings... I can't avoid it but old rusty drums always pop up in my mind... :blink:

Unless my e-juice is waterlike clear, I'm not vaping it.

Probably another reason I just vape menthol too... :)

Regards
Tony
 

AndriaD

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I'm anti colorings also... besides... when you get a premixed far east sourced menthol juice, one starts questioning/worrying why in earth the liquid is dark yellow when none of its "official" components have any colorings... I can't avoid it but old rusty drums always pop up in my mind... :blink:

Unless my e-juice is waterlike clear, I'm not vaping it.

Probably another reason I just vape menthol too... :)

Regards
Tony

Nicotine does turn yellow from oxidation, perhaps also from light, not sure about that part though. But all ejuices will gradually darken over time -- I had a "french vanilla" that was perfectly clear yellow when I got it some months ago... now, you can't tell it from the chocolate ones, it's such a dark brown.

Andria
 

rondasherrill

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Nicotine does turn yellow from oxidation, perhaps also from light, not sure about that part though. But all ejuices will gradually darken over time -- I had a "french vanilla" that was perfectly clear yellow when I got it some months ago... now, you can't tell it from the chocolate ones, it's such a dark brown.

Andria

Yep I've seen this myself. Mamas Angel Wings from Kick Bass Vapor did that. Almost clear when new, looked like chocolate after a few months. It's got to be something to do with the flavorings though(at least mostly). My year old supply of unflavored is still almost crystal clear.
 

tchavei

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I have 4 year old 52mg nicotine stored in a plastic bottle (yuk) thrown in a drawer in my office (not freezer). When it was fresh, it was crystal clear. Now it has a yellowish taint on it but if you cut it down with pg and vg, it becomes unoticable i.e. looks completely clear. I can assure you that those bottles of menthol e-liquid I used to get from my dealer were MUCH MUCH darker than 4 year old nicotine in a pg solution... its not the nic.At least not by itself. :)

Regards
Tony
 

teddybear2566

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From what I can tell from DIY that I've done ever though everything I get is clear they still change at some point from the simple break down of the molecules aka steeping. I use flavor apprentice as my flavor company and have had the best luck with this issue and the flavors are spot on and well priced. Other then changing supplier I would contact yours and ask them to send you some with out the color added

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