the problem with diacetyl and diketones is that potential harm is extremely low even
in the at risk groups. microwave popcorn makers in some,not all plants and most
recently in a plant where coffee is roasted. only one non industry worker has ever
diagnosed with popcorn lung. even among industry workers its a occurrence is small.
what about all the popcorn plants where none was discovered? how long has coffee
been roasted? where are all those people? where are all of the pastry chefs,bakers and,
candy makers? candle makers too.
anyone on the net can find out which flavors have these substances in them.
the manufacturers of these products make available the chemical breakdown
of every ingredient in any given flavor or when asked for such information.
all one has to do is take the time to sit down one afternoon and actually read
the the product data sheets and separate the flavors that have from those that
don't and proceed from there.
then label the product accordingly. the manufacturers already make PG/VG,
flavors and colors to FDA standards. there is no need for regulation and further
testing at the vendor level. just get off their behinds and find some one with
eighth grade reading skills to do a little home work.

regards
mike