Chefs Choice Extract Flavors ?

Hi everyone was hoping to get some help in finding out if Chefs Choice Extract Flavors are safe to use
they are made in USA
Right now i have 3 of them Pure Chocolate , Natural Blackberry , Special Blend Coffee Flavor

The 3 things i know to look out for are not in these flavors

Diacetyl , Sugar , Oils

thanks for any feed back : )

Found this site if you wish to take a look

premiumgourmetfood.com.com

 

I like this link when looking at flavours for DIY Guide To Flavouring - Planet of the Vapes Wiki

 

my brother uses these in cooking sometimes, when doing a function. they make super concentrates look like doublers

 

Those are extracts not flavour concentrates

 

Interesting.. just looking at the natural blackberry ingredients:

Propylene Glycol, Blackberry Juice Concentrate, Natural Flavours, Water

Looks good?

 

Has anybody tried these? I've tried the natural extract found in the baking section at Coles. Seems OK to me. Same sort of ingredients (Glycerine, natural flavour, water). Surely if you can eat it, you should be able to smoke it (if it's in liquid form anyway).