It depends on the type of dish, the type of application and the number of people you are cooking for. The rule of thumb is that silver, even if it weighs the same, has a higher yield than gold and the powder’s brightness is more spread out than the crumbs and flakes. With the same mg of product you will attain significantly different visual effects. As a guideline, the 70 mg gold powder, crumbs and flakes are perfect for 5-7 servings; 125 mg for 8-10 servings; and 1 g is sufficient for 70-90 people. As for the leaf, one may be enough to decorate a risotto or part of a cake. For full coverage we need a few more.