Loosen up your grain bed to prevent stuck mashes and improve wort clarity Highly recommended for recipes that are adjunct heavy with high amounts of brewing flakes Imparts no flavor to the finished beer Use as 5% of the total grain bill Rice hulls offer a natural, easy way to help prevent a stuck mash! Rice Hulls are used to aid in filterability when you’re doing all-grain brewing with a high percentage of wheat or oats, or if you have had lautering problems. They do not impart any flavor to the finished beer. Use at a percentage not greater than 5% of the total grain bill.