i thought i'd try the ethyl maltol, so i purchased some, added 1/4 tsp to 10ml pg (which was recommended on this forum). this mixture tasted like nothing so i added another 1/4 tsp. there still is no taste to it at all. not the slightest bit of sweet. also there is still a tiny bit left in the bottom, i can't get it to dissolve completely. what did i do wrong? there is no way my ethyl maltol mix would make a cotton candy-flavored juice. could the stuff i bought be old or something? thanks for any tips.