If unhulled barley is used, you’ll want to get rid of the hulls off your sprouts first before eating them, because the hulls are inedible. You can do this by swishing the sprouts in water; the hulls should come off and float to the surface of the water.
Some people prefer sprouting the variety of barley called “hulless barley”, because those barley grains don’t have any hull to speak of to remove.
