Re: Safe Glycerin?
That seems like a cosmetic glycerin, you're better off getting a vegetable glycerin that is rated as food safe. Glycerin is what helps create the smoke and you want to be using something that is safe to ingest. Some health food stores like Whole Foods will carry vegetable glycerin and worst case scenario you can order some off Amazon.
36" Al Falkher Solid - 36" KM Copper Heart Two Hose - 22" Temsah Mini-Wheat(a.k.a. Golden Nugget)