How about malting your own quinoa? Just a thought, don’t know if the seeds would sprout, and would be expensive.
I had limited success with this. the seeds sprout like mad. in fact one of the hardest parts (aside from the fact that there is only limited alpha amylase activity) is STOPPING them soon enough. They are ready to kiln within 12-18 hours after the first soak.
In my experiment I got about 60% AA with a massive overpitch of us-05. I have yet to repeat the experiment but it’s on the roster.