Steve Cowles
Making eLiquid
Firstly, a disclaimer. I'm not here to promote vaping, whilst there is evidence suggesting that it is less harmful than smoking there are also studies showing it to be harmful in its own right so you make your own choice there.
I started vaping when I have up smoking a year or two after it was banned in English pubs, I vape less than I used to but still do sometimes. From time to time I have made my own eliquid which saves a lot of money.
eLiquid has four ingredients which can be purchased (online) and you can easily mix yourself using a measuring syringe (no needles).
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Nicotine
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Flavouring (specifically for vaping)
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Vegetable Glycerin (VG)
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Propylene Glycol (PG)
Here is a spreadsheet I developed to calculate how much of each to add before mixing well. Feel free to use it at your own risk. Enter data into the green cells and the required volumes will appear in the orange cells. I'm not going to to cover off what percentage of nicotine or PG/VG you want to select as that is your own choice and there is plenty of material elsewhere on the internet to allow you to decide. If you are on a mobile you may need to download the attachment first.
If you do not know how to answer the questions, don't use it!