Paying for ingredients just got easier for manufacturers of foods and beverages. D.D. Williamson, world leader in caramel color, will now accept its customers' payments through Visa and MasterCard. Though frequent among vendors in other industries, D.D. Williamson is among the first ingredient manufacturers to offer this convenient service to its customers. The company announced its new service at the Institute of Food Technologists' annual meeting this week in New Orleans.