Emptying bag of millet flour into bowl. Traditional but breakable calabashes are being quickly replaced by aluminum bowls. Note: Millet produces a seed with a hard and inedible hull. It must be milled by hand or by machine to remove this hull before it can be ground into millet flour. Millet-based recipes in Africa are based on sifted millet flour or rolled millet flour pellets, not on unprocessed millet seeds. The sack of flour shown was milled from millet seeds the previous day.