Frequently Asked Questions
Everything you need to know about the South's favorite mayonnaise.
What makes Duke's Mayonnaise different from other brands?
Duke's is the only major mayonnaise that contains no sugar. We use a high ratio of egg yolks and a touch of apple cider vinegar to create our signature bold, tangy, and creamy flavor profile.
Do I need to refrigerate my Duke's Mayonnaise after opening?
Yes. While our products are shelf-stable before opening, they must be refrigerated immediately after the seal is broken to maintain quality and safety.
Are your products gluten-free and kosher?
Most Duke's products, including our Real Mayonnaise, are naturally gluten-free and certified Kosher. Please check the specific product label for the most accurate dietary information.
How do you handle shipping for perishable or glass items?
We use heavy-duty, reinforced packaging to ensure your jars arrive safely. Orders are typically processed within 1-2 business days and shipped via standard ground delivery.
What is your return policy for food products?
Due to the nature of food products, we cannot accept returns once a shipment has been delivered. However, if your order arrives damaged or incorrect, please contact our customer service within 14 days for a full refund or replacement.
Where can I find the 'Best By' date on my jar?
The 'Best By' date is printed clearly on the shoulder of the jar or the side of the lid. We recommend consuming the product by this date for the best flavor experience.