Help with RBA coils

Adding what?

 

I intended to ask if you are adding sweetener.

 

Nope. I use just the mango eliquid in its natural state and add a bit of peppermit. It's a very sweet liquid....

 

It looks like burned sweetener, carbohydrates, to me. Do you have the same if you vape that e-liquid in power mode?

 

Yes. I'm only vaping at 170 - 180 celsius too. All my preferred juices are very sweet with a bit of mint. Both my apple kool / apple mint mix and my mango / peppermint mix do the same thing.

 

Carbohydrates can burn from about 156 C or so. Not healthy. Well the photo is not good so I might be on a completely wrong train here.

Can you try a full tank in VW mode at 15 or so W? Or another e-liquid which us not so sweet?

**Updated**

Consistency of these deposits kinda tar like? Taste sweet but bitter?

 

To be honest, I have not actually tasted the deposit. When the taste gets bad, it's just a burnt taste. The juice is 50/50 PG/VG. I doubt they're adding sugar...

 

After one day . . . I would not vape that to be honest.

 

I think that's a bit alarmist. A quick google reveals many people who dry burn twice a day to remove gunk that accumulates because of the juice they're using. A google image search will show many coils looking a lot worse than mine....I'm using reputable liquid at reasonable temps and my cotton doesn''t char. They're most likely using sucralose, which I understand is the most common sweetener in ejuice.

I definitely feel more comfortable vaping my liquid than inhaling the 30 L&M menthols I was smoking every day until a few weeks ago.

**Updated**

Ok, here are a couple of better photos taken with my Canon DSLR. I don't have a macro lens so I had to crop these at 1:1 - the focus is the best I can get it with the 24-70mm. I colour corrected them with a grey patch, so the colours are accurate (if your monitor is accurate too!)

I think I'm getting much better results from the spaced coils. These are both after about 5 hours of chain vaping. One is the Kayfun V4 using my apple mint / apple kool (which has a gold brown colour) and the other is a Kanger subtank mini containing the bright yellow mango ejuice.

 

From the sound of things this won't help you personally, but I have been playing around with builds and power to the coils lately as I was getting the same sort of thing with my favourite juices. This only started when I went over to sub tanks after drippers at lower power. Now this is NOT in TC either so again this is probably no help BUT… What I have found out is that after running a standard dual micro I got bad gunk after only 5-10ml of juice dependant on what flavour I was using. At first O thought it was just bad luck with Stevia sweetened juices. Now I have put a dual parallel in one tank and a Clapton in the other and I am running at higher power and slightly higher temps and the coil is taking anything up to 25ml before I need to clean and rewick to get rid of the burnt taste.

As I say not much help to you as yhour juice appears remarkably temp sensitive. Just thought I would share my own notes just in case.

 

I would avoid anything that caramelizes at that low temp. The 3 sweeteners considered safe are xylitol, stevia and ethyl maltol. There is no need to use sugar or any modified variants of it. On top of that sucralose reacts with VG to some cancerous stuff, forgot the name of it.

I don't need to be an expert or an alarmist. If I personally see such amounts of gunk covering all inside of my atomizer I expect this also lands inside my lungs. While I must say the later pics with the spaced coils look mucho better.