Eating is kinda hard because it is such a big volume, so it takes some time to absorb it all... Once I ate a lot, but puked everything in less than 1 hour, so most of it got wasted.
Brewing and discarding the solids can be a good idea to concentrate the alkaloids (3 times should do it).
Next time i will try to make a simple extraction with ethyl alcohol, as the full A/B extraction was a PITA and didnt yield much. Just leave it in alcohol (90% or more) for a couple of days and filter the solids, dry the liquid. Repeat 3 times...
I don't know if it's what you meant, but brewing will not make it more potent, but it only serves to dissolve the good stuff in water, so you can discard the solid part. You can boil that mescaline tea until it is thick, so you will have to drink less volume for the same effects. Research about brewing methods. I
think the best way to do it is using a pressure cooker.