reat purchase.<br /><br />It's true that how effective they are varies by person, and by the foods you try them with, but overall these were a big hit at numerous gatherings of friends and family. I've found that the biggest hits tend to be vinegar, and tart citrus like lemons, limes, or grapefruit juice. For me all go from being sour to very sweet (yes, to the point where if I didn't know better I'd be gulping the vinegar down). Dark beers are interesting, with the changed flavor still usually 