Since 1886. American Culinary Federation Seal of Approval: Est. 1929. The gourmet choice. Pure and natural. Kosher for Passover. This salt does not supply iodide, a necessary nutrient. Since 1886, our proprietary, multi-faceted crystals have offered incomparable texture and flavor. An essential ingredient for chefs everywhere, this unique, flaked salt sticks to food well - and is perfect for precise seasoning. Awarded the American Culinary Federation Seal of Approval, Diamond Crystal kosher salt - is the gourmet choice. www.diamondcrystalsalt.com. Kosher for Passover. Upromise: Save for college. Join Free: Upromise.com. American Culinary Federation Seal of Approval: Est. 1929. The American Culinary Federation (ACF) endorses Diamond Crystal kosher salt as a brand preferred by professional chefs. ACF, founded in 1929, is the nation's largest organization of chefs with the highest standards of cooking. Product of USA.