While safe to eat in small amounts, inhaling diacetyl vapors is linked to a severe lung condition called bronchiolitis obliterans , or popcorn lung. This raised red flags when early studies found traces of diacetyl in some e-liquids years ago particularly those with buttery, creamy, or custard flavors
The best ways to quit smoking deal with both: first stabilising nicotine, then breaking the habit
If in doubt, ask someone: you dont want to get a fine
Xu, G., Liu, Y
Pod systems split into closed (proprietary pods you snap in and toss) and open (refillable tanks you fill yourself), trading a bit of setup time for meaningfully lower running costs
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