This is "semi-normal" for some flavors (see above). Menthol in particular will throw you out of the chair even if it makes *no* vapor. it's primarily because the wick is a tad flooded, and every component of the juice (
pg/flavor/nic) vaporizes at a slightly different temperature. if the
atty is too cool (cant get hot cause its sopping wet) but hot enough to vaporize say..the flavor and the
pg but not the nic (or whichever, I don't know the precice vaporization points of the different liquid components) your results will reflect that certain components are vaporizing before others...
Why does this not normally happen? Because the
atty usually reaches a temperature at which *all* of the components vaporize at the same time. The only case in which this is not true is with a weak
atty (junked up with carbon from prolonged use) or a sopping wet
atty that can't achieve proper temperature until some juice is cooked off of it.
Indians (and presumably many other primitive cultures) used to boil water in buffalo stomach and other organic containers...Why did these containers not scorch and burn? Due to the liquid inside which seeped out just enough to keep it from burning! The same is true of the cartomizer. As long as it's wet, it doesn't burn...but too wet and it can't achieve proper vaporizing temperature.
This is why sometimes refills don't create proper vapor initially..and why sometimes even brand new (slightly overfilled) cartomizers do this for the first several drags.
Hope that helps!
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