FAQ
Q: What makes a real Mayonnaise
A: Mayonnaise is an oil-in-water emulsion that must contain at least 65% vegetable oil by weight, vinegar, and egg or egg yolks. No emulsifying agents other than eggs are allowed, so real mayonnaise does not contain any starches or gums. For more information, check the link: FDA Mayonnaise Guidelines.
Q: What ingredients are used in Duck Hill Mayonnaise?
A: Duck Egg, Avocado Oil, Vinegar, Salt, Sugar, Mustard Powder, Water.
Q: What makes duck egg mayonnaise different from regular mayonnaise?
A: Duck eggs have a richer yolk and higher fat content compared to chicken eggs, which gives our mayonnaise a creamier texture, more luxurious mouthfeel, and a deeper, more complex flavor.
Q: Do you use the whole duck egg or just the yolk?
A: We use the whole duck egg, both egg & yolk, which contributes to a balanced richness and a naturally stable emulsion.
Q: Are the eggs pasteurized?
A: Yes, the eggs are.
Q: What oil do you use in your mayonnaise?
A: We use refined avocado oil for its clean taste, smooth texture, and heart-healthy profile. It lets the richness of the duck eggs shine without overpowering.
Q: Are there additives or preservatives?
A: Our commitment is to a clean, uncompromising ingredient list. Freshness and safety are achieved through precise pasteurization, fresh ingredients, pH control, and modern vacuum-sealing, not chemical shortcuts.
Q: What does duck egg mayonnaise taste like?
A: It’s rich, velvety, and slightly decadent - more flavorful than standard mayo but still versatile enough for sandwiches, dressings, dips, or gourmet pairings.
Q: How should I use it?
A: Anywhere you’d use mayonnaise - sandwiches, burgers, potato salad, and applications like aioli, charcuterie spreads, or paired with seafood and roasted vegetables.
Q: Is your mayonnaise gluten-free?
A: Yes, our mayonnaise is naturally gluten-free.
Q: Does it contain dairy?
A: No. Our mayonnaise contains no milk or cream.
Q: Is it suitable for keto or low-carb diets?
A: Yes, our mayonnaise is low in carbohydrates and made with avocado oil, making it keto-friendly.
Q: Does your mayonnaise have any trans fats?
A: No.
Q: How long does the mayonnaise last?
A: Unopened jars last several months when stored in a cool, dry place. After opening, we recommend refrigerating and using within 4 weeks.
Q: Does it need to be refrigerated before opening?
A: Our jars are shelf-stable until opened, but refrigeration after opening is required to maintain freshness.
Q: What should I do if the jar vacuum-seal is broken before use?
A: The vacuum-sealing process ensures safety, freshness, and extended shelf life without artificial preservatives. You should hear a popping sound from the cap when opening the jar for the first time. If you don’t hear this sound when opening for the first time, you should not eat the mayonnaise & report this to wherever you bought it from.
Q: Where do the duck eggs come from?
A: We source duck eggs from trusted farms that prioritize animal welfare and quality feed.
Q: Why duck eggs instead of chicken eggs?
A: Duck eggs create a richer, more luxurious mayonnaise that stands out from anything you’ve tried before.
Buying & Availability
Q: Where can I buy your mayonnaise?
A: You can order directly from our website or find us at select gourmet shops and farmer’s markets.
Q: Why did my mayonnaise separate?
A: Mayonnaise held at temperatures below 35 degrees F and above 90 degrees F may separate and discolor. While the product is still technically safe to consume, it will not look or taste the same and we strongly recommended that you don’t consume it.
Q: Can your mayonnaise be shipped in very hot or very cold temperatures?
A: Temperatures below 35 degrees F and above can cause mayonnaise to separate, discolor, and lose flavor. We strongly recommend waiting for more mild weather before ordering or finding a local store that carries the product.
Q: What should I do if there are no local stores carrying Duck Hill Mayonnaise?
A: Tell them to get their shit together and contact us.