Grape Juice as an Ingredient

Are grape juice and wine ingredients used in OU certified products such as mustard and fruit cups always Mevushal?

OU certified products contain only OU approved ingredients. As such, wine, grape juice, grape flavor and grape derivatives in OU products are only approved in such products when they are Mevushal (cooked), so that there is no concern of Stam Yaynom (wine and grape juice products handled by a non-Jew).