I made up a small 5ml bottle @ 5% spearmint, have to say it tastes putrid...and dumped it down the drain, notice my KFL tank is cloudy looking, I've cleaned my tank with dish washing liquid, rinsed it off good, left it sitting in hot water and the taste won't let go. I put a pretty strong tobacco blend I had made and I can still taste the spearmint...I'm dumping this whole bottle of spearmint and then burning/burying the plastic bottle...geeze