Made from dehulled oats, Oat Flakes are readily attacked by malt enzymes although brewhouse yield may be slightly lower than with any of the other pregelatinized flakes. Oat Flakes have a very distinctive "sticky" mouthfeel, noticeable even when used in small increments. Use 5-25% for an Oatmeal Stout. A small percentage of Oat Flakes is nice in Belgian-style White Beers. Oat Flakes tend to make a sticky mash. The more used, the stickier the mash. To counteract this, add more foundation water. Use a ratio of 3.0 to 3.2 parts of water to 1 part grist. The run-off from the lauter will remain rather milky, but clears during filtration. Lovibond: 2.5. Protein: 14.0%.