I have been wondering if those of you that use Vita Mite 100 milk substitute have had any problems with the product. I happen to think it taste the best BUT...after a few days of being open I get a curdled substance in the milk. Now, I don't know if this is just normal or if the product has already begun to turn bad. So I have been throwing it out and starting over. It doesn't taste bad but I am very hesitant. I really hate to give it up because some of the other taste so sweet. Anyway, has anyone else experienced this. Thanks