To make story short: I have already tried two of stevia Profukte Nevella and both made my tea / coffee literally inedible. The bitter aftertaste prevails and it is extremely odd to have a drink sweetened and simultaneously to taste something bitter. The bitter aftertaste also remains long in the mouth with me.
I really wonder whether the manufacturer has ever considered to test its products times. I can not explain how such a thing can come to market to me!