Question for those using DW to cut their e-liquids:
How does dilution affect flavor and vapor?
How does it affect the cloud production and flavor? I have one I do not have a problem with Tropical Fruit but it is 80% VG and at times it is bit much which I compensate for my turning down the wattage. I am wondering if I was to cut it a little bit how will this affect it? Sure I can do trial and error just trying to gain some insight before I experiment. Thanks in Advance!

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For the benefit of new vapers landing here adding water to juices has no upside as far as I can tell. Three years and countless setups, builds and recipes since. Like most I thought water would work having a lower vaporization point; however, just as with PG it tends to thin the vape. Now for those who love diffusion rather than actual vapor production, go ahead and up the power and get that big cloud anyway. You won't see more
vaporization but a demand for the higher temperature to achieve the additional production. Don't know why exactly. The science and theory
suggest otherwise. Yet it's just been my consistent observation to the contrary from practical experience.
Further, well blended crafted juices can be thoroughly ruined when ingredient ratios are disturbed or the solution of their flavoring ingredients. It's common to see a dilution of flavor and further if more power is applied to increase production. My take is higher power levels tend to diffuse accent flavors given their small proportion to a point of less detectability. Some will say
oh tastes great now. Don't mean a thing. Maybe the base flavor ingredient itself is now dominant and that's what you love. What did the designer intend? You may never know.
Finally, the norm of thinking seems to be PG brings the flavor out. This applies to VG/PG ratios and pure or high VG juices. There may be some science to that as well; it's a longer process (more time, expense) to make VG flavorings. Are VG ingredients themselves less flavorful? No. Some may seem so as less concentrated, but that's a production decision, not a characteristic of the flavoring
type itself necessarily. Neither should juice recipes be then. However, dilution will most certainly have an impact on the final ratios affecting flavor.
If VG is a problem or if you must, try juices that are available with extra flavor drops and dilute with PG only proportionately. That is, by no more than the percentage of flavor your are adding. If adding a
flavor drop gives you an additional 20% of the original flavoring value, I'd suggest dilute no further. Consider that your mix may require steeping. How much may vary depending on flavorings used. And especially an expensive craft juice which may have natural, extracted or non-PG bases which may take longer to reintegrate into solution.
Gunk, accretion of certain solids in juices is totally proportional to vaporization rate in my experience. It can be accelerated by inadequate power (low batt, pwr setting) as well as bad coil design or wicking producing hot wet or dry hits, cooking and scorching respectively. Urge all new vapers consider learning to rebuild a predictable and stable tensioned microcoil which I introduced in 2013. It may serve as a wonderfully precise baseline for comparison vs. all the rather expensive consumable options out there. A Kanger Subtank with its most user-friendly RDA (horizontal coil rebuildable base, pictured) is recommended over verticals for dependability. See more here...
Protank MicroCoil Discussion!!
Tensioned Micro Coils. The next step.
Good luck Steve (all).