I'm trying to make some nice frozen yogurt, but unfortunately it comes out very acidic tasting (like the yogurt itself). Adding sugar does not remove it. Would sodium bicarbonate help in this situation? Also, does anybody know a way to get smoother frozen yogurt without adding fats? Draining the yogurt causing it to freeze even faster than normal for some reason, and I don't want to add loads of sugar to lower the freezing point.