Contains bioengineered food ingredients. America's favorite. Quality and value since 1930. Great products since 1930. Thank for trying Jiffy! We've been making great muffin and baking mixes since 1930's. So, when you are looking for delicious muffins, biscuits, desserts, or other great meal solutions, please think Jiffy! Howdy Holmes, President Chelsea Milling Company. www.jiffymix.com. Follow our social pages. Facebook. Instagram. Additional recipes at: www.jiffymix.com. Contact us at: 800-727-2460 Mon - Fri 8:00 am - 4:30 am EST. Packaged in recycled paperboard. Made in the USA.