We finally got around to starting some sprouts. I know we're supposed to rinse them at least twice a day, it's really cold here right now so I doubt they are generating much heat. Is it okay if the seeds dry out between rinsing or are they supposed to remain a little damp to sprout? The sunflower seeds, amaranth, and lentils look like they stayed at least damp but the alfalfa seeds looked almost completely dry. Do we need to be rinsing them more often?