As far as sweetener is concerned, certain additives and certain ingredients, be they sweeteners or other things, don't mix as well, quite frankly, in a food or beverage product. Stevia is one of those. There are products that stevia can be used in. There are others that it is not as productive to use in. When you take a glass of water, you put sugar in it, you stir it, it dissolves and it stays dissolved.
There are some issues around stevia as far as its ability to be used in some products, but our members have worked very hard in other jurisdictions for years to find those products in which it does work.