Bean Screen makes growing sprouts at home easy, fun, and safe with a unique growing lid for Mason jars. Add seeds to a Mason jar, secure the Bean Screen lid, and soak the seeds overnight. Rinse and drain every morning and evening for approximately 3 to 5 days, resulting in a jar filled with fresh and healthy sprouts, grown from seed. Ensures proper airflow and ventilation to grow the healthiest and most delicious sprouts. Grow any type of sprout including: alfalfa, bean, broccoli, mung bean and more. Designed for wide mouth jars. Food safe, BPA-free, plastic lids are dishwasher safe.