Goldminer™ California Sour Dough Square Bread. No artificial colors, flavors or preservatives. The Goldminer promise: Craftsmanship takes time. Just like Goldminer. Every bite is a salute to authenticity and an unhurried baking tradition you thought was long gone. The result is uniquely tangy and irresistibly chewy, ensuring that your first taste will never be your last. For legendary recipes and more: Or visit us at: californiagoldminer.com. Wholesome Harvest Baking. Goldminer is a trademark of Wholesome Harvest Baking, LLC.