Frequently Asked Questions


  • Where does Challenge get the milk it uses to make its products?

    We rely on over 450 family-owned farms to deliver the best tasting, highest quality milk to produce Challenge Butter. Challenge Dairy is a wholly owned subsidiary of California Dairies Inc. (CDI), the second largest Dairy Cooperative in the United States.

  • What is the natural flavoring that's added to Challenge Unsalted Butter?

    The natural flavoring that is used as an ingredient in Challenge Unsalted Butter, Challenge Unsalted Whipped Butter and Challenge Unsalted European Style Butter, is a natural flavor distilled from fermented milk. It is added to the cream prior to churning and produces flavor compounds that give our unsalted butter a distinctive, pleasing taste. It is an all natural ingredient that is approved by the USDA and the FDA.

  • What is rbST?

    rbST is the acronym for recombinant bovine somatotropin, a synthetic version of a protein hormone that is produced naturally in the pituitary glands of all cattle, including dairy cows. rbST is used to stimulate milk production in dairy cows. According to the U.S. Food & Drug Administration, there is no difference between milk from cows treated with rbST, and milk from those that haven't been treated.

  • Does rbST-free mean Challenge Butter is hormone-free?

    No. Challenge Butter is made from milk, and all milk contains naturally occurring hormones.

  • Do Challenge Butter products contain BST?

    BST is also known as Bovine Growth Hormone. It is a protein hormone that is produced in the pituitary glands of all cattle, including dairy cows. It occurs naturally in milk.

    rbST is the acronym for recombinant bovine somatotropin, a synthetic version of BST. Challenge products are made from milk from cows not treated with rbST.