My next brew was supposed to be this morning.... I will admit I am nervous. One of my all time favorite beer styles is Hefeweizen (technically Dunkleweiss) but the last 6 batches or so have been disasters. I continually get most of the right flavors - touch of banana mostly clove and some figs - however, each of the last 6 batches has had a slight tartness at the end that I can best describe as "sourdough bread" not "bad" but not what I want! I have tried different yeasts, different procedures, different base malts, etc. The only thing I haven't changed is that the 50-60% wheat malt I have been using is "Wyermann Dark Wheat Malt"... I can only assume it is that. For a while I thought it was oxygen that was giving me the sourdough taste but I use the same procedure for racking as I do ever other beer and I only get it in this beer so it must be the dark wheat.
Anyway, this recipe will be back to "american white wheat" which I used in my first 3-4 batches with great success. I will also be using WLP300 again which I think is my favorite hefe yeast.
If this doesn't work then I have decided I will only buy commercial hefe/dunkel weiss and simply brew all other beers myself. Every other beer I make comes out pretty solid ( I tend to make better lagers than ales admittedly) - this hefe though just continues to escape me!