Caution: flavourings
Food-grade flavouring compounds are, by definition, not tested for inhalation. There are likely to be health implications resulting from inhalation of some flavours, and right now we do not have a complete list of the problematic ones. At least one is known to be extremely hazardous to the lungs (diacetyl) and there is no reason to suspect it is an isolated case. Because too little is known about this aspect of vaping, ECF cannot advise you in detail on this issue; but we do know that as well as butter-popcorn the creamy, buttery, custard-type flavours will probably entail risk even if diacetyl itself is absent (because this group of flavours has a question mark regarding safety).
This flavour group includes diacetyl, acetoin, and acetyl propionyl: the dairy, creamy flavours. Realistically, we do not know if there are any safe flavours for inhalation in this group.
Food-grade flavouring compounds are, by definition, not tested for inhalation. There are likely to be health implications resulting from inhalation of some flavours, and right now we do not have a complete list of the problematic ones. At least one is known to be extremely hazardous to the lungs (diacetyl) and there is no reason to suspect it is an isolated case. Because too little is known about this aspect of vaping, ECF cannot advise you in detail on this issue; but we do know that as well as butter-popcorn the creamy, buttery, custard-type flavours will probably entail risk even if diacetyl itself is absent (because this group of flavours has a question mark regarding safety).
This flavour group includes diacetyl, acetoin, and acetyl propionyl: the dairy, creamy flavours. Realistically, we do not know if there are any safe flavours for inhalation in this group.