I don't, I must admit. At school during cooking class, the teacher saw that as a greater evil than the biblical The End of Days. So it kind of got pushed out of my mind. But perhaps one should, I mean, how will you know if your spice content in the dish is enough? Just a thought, but tasting the food does have a good side. Just don't think other people will be happy knowing you did it while preparing their food, unless you use a new spoon for every taste.