I have a question regarding flavoring. I have three 7 oz bottles of Back Bay Trading Co. Flavouring Anyway, the ingredients for the Natural Almond Flavoring says: Contains water, propylene glycol, and oils of almond. I bought these bottles for a buck each a couple of weeks ago at one of the local discount stores (before I even thought about vaping and DIY). So, my question is...are these ingredients suitable for e-liquid flavoring? I tried to search the forum, but saw nothing about Back Bay.