Place 1 cup raw buckwheat groat seeds into a bowl or sprouter. Add 2-3 times as much cool, purified water. Swish seeds around to assure even water contact for all. Allow seeds to soak overnight. Drain off the soak water. Rinse thoroughly with cool water. Groats create very starchy water; it's very thick! They won't sprout well unless rinsed well, so rinse until the water runs clear. Drain thoroughly. You can add to your sprouter at this time or simply put the sprouts in a colander and cover with a tea towel. Set out of direct sunlight at room temperature (70 degrees is optimal; if it's too cold they won't sprout). Rinse and drain again in 4-8 hours. Groats will have 1/8-1/4 inch tails. Yields approximately 1 ½ cups of sprouts.