Gunk that dry-burns

[surfatwork]

What exactly is the black/dark stuff that seems to collect on coils/wicks and burns off (with a white smoke) when we dry burn a clearomizer?

[davetherayon]

Carbon, by and large. There can also be relatively small amounts of dried glop used in making the ejuice, especially if it's a strong flavour. Dry burning it produces common smoke, carbon dioxide.

[GunJack]

Its just the residue left from the juice already vapourised, that builds up until you need to clean or re coil

[VapingBad]

Its juice residue, just like if you boil something dry on the cooker,

[surfatwork]

thanks. The reason I am curious is because I read that PG/VG is only heated, not burnt, in e-cigs. Assuming this is correct, and it does seem correct, where does the carbon residue come from?

[VapingBad]

It's the solids in the liquid that remain after boiling off the liquid, there maybe carbon I spose it's possible if you go on to burn the solids.

[fred]

I've just checked with WHO and MHRA and they are in agreement that the gunk is rat poison. When it is burnt, the fumes given off are sarin gas.

Tease-smiley

[lisburnvapes]

Sweet desert type liquids seem to gunk up the coil quicker so I presume that some of the gunk is burnt sweeteners


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[hijack]

Jul 10, 2014 16:44:03 GMT surfatwork said:

thanks. The reason I am curious is because I read that PG/VG is only heated, not burnt, in e-cigs. Assuming this is correct, and it does seem correct, where does the carbon residue come from?

As pg/vg is not combustible it can not burn like paper ect. I guess it depends on your definition of burning, and the temperature at which heating becomes burning.

Whats left on the coil is mainly down to sweeteners and flavouring. Im not sure if pg/vg leave any deposits themselves, I don't fancy vaping unflavoured 50% vg/pg for a week to find out

[Perpetua]

Jul 10, 2014 17:19:16 GMT lisburnvapes said:

Sweet desert type liquids seem to gunk up the coil quicker so I presume that some of the gunk is burnt sweeteners

It is, the more sweetener in an eliquid, the quicker that will caramelize on the coil when heated.

[VapingBad]

Jul 10, 2014 18:11:20 GMT hijack said:

Jul 10, 2014 16:44:03 GMT surfatwork said:

thanks. The reason I am curious is because I read that PG/VG is only heated, not burnt, in e-cigs. Assuming this is correct, and it does seem correct, where does the carbon residue come from?

As pg/vg is not combustible it can not burn like paper ect. I guess it depends on your definition of burning, and the temperature at which heating becomes burning.

Whats left on the coil is mainly down to sweeteners and flavouring. Im not sure if pg/vg leave any deposits themselves, I don't fancy vaping unflavoured 50% vg/pg for a week to find out

PG will burn if you put a flame to it, many ppl do this to prep ss mesh for wicks.  

Unflavoured PG isn't bad, a little flavour that I could (but rather not) live with, but I would find VG to sweet.

[surfatwork]

righto, thanks for the input. Someone asked me, I wasnt sure, and I thought I would canvass opinion here.

fred, if that's what you are vaping, the effects are beginning to show