Each of our bags contain 3 or 5 pounds of hydrated whole oat grains inside a unicorn brand bag. The bags have a .2-micron filter patch for sterile gas exchange. Our whole oat is washed and rinsed thoroughly, then soaked for 24 hours. It's then drained and set on racks to air dry. The whole oat is measured out into 3- or 5-pound bags and pressure sterilized before being sealed and shipped to you.