U_Stormcrow
Free Ranging
I've planted amaranth in my pasture, with the dsozens of other things there. In small quantity, as forage, mixed with everything else, I'm not worried about collection, separation and cooking - yes, there are some anti-nutritive properties, but by keeping quantity small, I keep concerns small. Some of the other things in their diet can help counter some of those concerns as well. If I had a lot of it for harvest, I'd set up a screen system, not only to air dry/sunbake on a large surface as a shallow layer, but to shake gentle and allow the seeds to fall thru while retaining the larger chaff, above - much as in done in archeaology digs.