Siddharta Posted April 19, 2011 Share Posted April 19, 2011 Hello, I am wondering about PG grade. Is it enough that PG is USP pharmaceutical grade, or it has to be food grade E-1520? What are your observations on this matter? Link to comment Share on other sites More sharing options...
kitsune Posted April 19, 2011 Share Posted April 19, 2011 I have used both and both work great. I really haven't noticed any difference between the 2. some of the food grades are a bit sweeter, but thats not a problem for me anyway. Link to comment Share on other sites More sharing options...
ThaLadyD Posted April 19, 2011 Share Posted April 19, 2011 Here is a link to some good information for ya PG/VG Labeling & Purity Link to comment Share on other sites More sharing options...
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