how can I ferment wheatgrass sprout i.e., rejuvelac is puportedly fermented naturally, but I think not.
Can I just puree the sprouts, then add 1/3 cane sugar, and let it ferment ( maybe some wine yeast to accelerate the process), ideas please??
I have never fermented them, but I will give you my two cents.
I believe that they are fermentable without pureeing them. I wouldn't add sugar. It's not healthy. All vegetables have some of the residual stuff that will turn into fermentation. If I were to add something, it would be some cabbage, or perhaps some starter from a previous ferment. You don't have to add much to get it going. It would probably work anyway, but your odds are increased and your anxiety/chance of having to throw it out is dramatically decreased.
John S
PDX OR
Adding sugar will encourage yeast to grow, which may be what you want if you are seeking carbonated or alcoholic drink. There may also be a lot of natural sugars in the sprouted grain already.
You could malt the sprouts and use them in ferments like beer, small beer, sourdough.
Wild fermentation by Katz is a great read for this kind of fermentation experiment. I think Sally Fallon has some sprouted grain ferments in her book Nourishing Traditions. Most of Fallon's recipes use whey (live, as in from a fermented source like labneh, not from cooked cheese making) as a starter.