Whole Grain Council
The Basic Whole Grain Stamp signifies that a product contains at least 8g (8 grams) - a half serving - of whole grain, but may also contain some refined grain. Even if a product contains large amounts of whole grain (23g, 37g, 41g, etc.), it will use the Basic Stamp if it also contains extra bran, germ, or refined flour. The number within the stamp signifies how many grams of whole grain ingredients are in a serving of the product.