On dry burning clearomiser heads

Note: also applies to atomiser coils of any type however the disposable CE4's referred to in the quote are not really suitable for this treatment as they can not be dissassembled.

kc76 said:
cheers thanks for the replies, I don't mind the idea of not having to dry burn Ive tried that with my old ce4 and keep getting a burnt taste afterwards


After dry burning you really must boil them otherwise you will just be tasting the burnt ash from the dry burning.


Procedure:


  • Pull the head apart and soak in hot water for 10 minues to remove remaining juice
  • Dry them out, especially long wicks
  • Dry burn
    • Screw the dissasembled head onto a base and screw this onto your battery
    • Start at low power and fire until the coil starts to glow
    • Increase the power incrementally, giving the coil several one second pulses
    • Work your way up to at least 8 watts (volts = ohms + 2 = 8 watts).
    • Keep pulsing the coil until all the ash is white or stops changing colour. It is then friable and will be easily removed by boiling (Note: if you find that the ash is not removed from the coil in the subsequent step it means that you did not burn it hard enough)
  • Boil for 10 ten minutes to remove all the ash and nasty taste
  • Dry
  • Assemble and use



If you wish you can skip the drying, and this will speed up the processing time quite a bit obviously. The down side of this is that it will take more time and power to dry burn, and if you're not careful a long wick may not dry burn properly due to the moisture content keeping the temperature down. You should at least pat the wicks with some absorbent paper to remove most of the moisture.


On no account miss the soaking and boiling steps. There's no point trying to dry burn the coil if the wick is saturated with juice, and if you don't do the finish boil (or vodka soak if you wish) then it's just going to taste like an old ashtray.

Comments

Hi Chris! So funny! I was just logging on here to ask you this question and here's the answer already! :laugh: I haven't really had much problem with the dry burning process, but this time around I did. I cleaned my Protank coil and dry burnt it and was still getting a nasty burnt taste afterwards and even replaced the flavor wick. Did it 2 times and still no luck. Now that you say to boil or soak after the dry burn, it makes sense (I thought that the coil was just ruined because I vaped the whole tank down to nothing this weekend). I'll have to try this out. Thanks for the info!!:)
 
IMRs;bt9609 said:
Hi Chris! So funny! I was just logging on here to ask you this question and here's the answer already!

Even funnier when you realise that I'd only written it a few hours before. Questions seem to come in batches, which is when I have been starting to blog them.

What sort of burnt taste is it? If it's the ashy taste you experience while dry burning then you do need to boil after dry burning. If it's a burnt rubber taste, then it really is burnt rubber - High resistance between the +ive coil wire and the center pin causes it to get hot and mark up the rubber grommet. This is caused by the pacifying layer (chromium oxide) causing a bad contact to the center pin. I'm currently working on an easy fix for this and will blog it eventually, but the fix at the moment is to remove the center pin and polish it with toothpaste.

Yes it's fiddly but only takes a few minutes, and seems to work every time.
 
:laugh:
Yes, it's the dreaded ashy burnt taste. No rubber involved just yet, thank goodness!! I'll have to go back and boil all of them because they're fairly new.
By the way, I just ordered a roll of kanthal today so I can start rebuilding them as soon as I get some extra time. Do you think rebuilding the coils is an easier and better way to go, though? I've been watching some of the videos on rebuilding them and it really doesn't look that difficult.
 
IMRs;bt9616 said:
Do you think rebuilding the coils is an easier and better way to go, though? I've been watching some of the videos on rebuilding them and it really doesn't look that difficult.

Recoiling is not difficult, and it's possible to make an extremely good coil after few goes. Mostly I build the coil on silica wick, but I don't rebuild every time. If I have a very good coil I will dry burn it and use it again.

Cost-wise, it doesn't take much to rebuild each time. It depends on what you find the most fiddly or time consuming. I've had factory coils that I've pulled apart after less than one fill because they were obviously not going to be very good, and other factory coils that I'm sure are still in rotation. I throw all the used coils in a container, and boil and dry burn them in batches about once a month. Any that are not vaping right I pull apart and rebuild as soon as I have a spare moment.

I'm not re-coiling at the moment because I've got all the coils how I like them (2.2 ohms, vape like fog machine, no flooding, no burning). If the coil is on silica I will usually replace the flavour wicks instead of torching them. Cotton wicks get pulled out and replaced after the coil is cleaned.

ETA: cotton wicks are removed before dry burning of course, since they will just go up in smoke.
 

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