Tannins are unpleasant in high concentrations and produce sensations ranging from dry mouth to burning to stomachache. Leeching the tannins out is the only way

Tannins are unpleasant in high concentrations and produce sensations ranging from dry mouth to burning to stomachache. Leeching the tannins out is the only way to make acorns palatable. Wheat is easy to prepare by contrast - simply grind it up and it's ready to use.