I've purchased the same ones before and they work very well. They are pricey but definitely worth it Here are my results from the different things I tried with the miracle berry Minute Made Orange Juice - Very sweet with almost no sour. Minute Made tends to add sugars to their drinks but you can notice the difference instantly. Strawberries - Much much sweeter, as if you put sugar on them. Milk - I did not notice a sweeter tasting milk but rather a stronger milk flavor, which I like. Salt - No change, as expected (I was curious Raspberries - Most of the sourness is gone and is super sweet. Pear - Very good, pretty big sweetness increase. Cranberry Grape juice - The sourness of the cranberries is almost all gone, leaving it very sweet! Apples - Taste similar to apples if you dunked it in sugar. Very good!