People Are Shocked After Seeing How Mayonnaise Is Really Made

Mayonnaise is one of the most common condiments in kitchens worldwide. Whether used as a sandwich spread, a dip, or a base for salad dressings, this creamy delight has become a staple in many diets. However, a surprising number of people have no idea how it’s actually made. Once they find out, many are shocked—sometimes in fascination, other times in horror.

The Origins of Mayonnaise

Mayonnaise has an interesting and somewhat mysterious history. Some sources trace it back to the 18th century, when it was allegedly created in Mahón, a city in Spain, after which it was named “mahonesa.” Others credit the French for perfecting and popularizing it. Regardless of its true origin, mayonnaise quickly became a favorite among culinary experts and home cooks alike.

What’s Really in Mayonnaise?

Many people assume that mayonnaise is made from complex, artificial ingredients, but in reality, it consists of just a few basic components:

  • Egg yolks – The key ingredient that provides structure and emulsifies the mixture.
  • Oil – Usually soybean, canola, or olive oil, which gives mayonnaise its smooth texture.
  • Vinegar or lemon juice – These acids help stabilize the emulsion and add a tangy flavor.
  • Salt and seasonings – A pinch of salt enhances the flavor, while some variations include sugar, mustard, or garlic for additional taste.

This simple yet clever combination results in a thick, creamy, and flavorful spread. But what truly surprises people is the process of how these ingredients transform into the familiar white condiment we all know.

The Emulsification Process

The most surprising aspect of mayonnaise production is the emulsification process. Because oil and water naturally do not mix, egg yolks act as an emulsifier, binding the ingredients together. When the oil is added very slowly to the egg yolks while whisking or blending, it forms a stable emulsion, creating a smooth, thickened consistency.

For many, seeing mayonnaise being made for the first time is shocking. The idea of mixing raw egg yolks with oil doesn’t always sound appealing, and the transformation seems almost magical. Some people are even repulsed by the fact that mayonnaise consists primarily of oil, as they mistakenly believe it’s mostly dairy-based.

Industrial vs. Homemade Mayonnaise

Homemade mayonnaise can be made in just minutes using a whisk, a blender, or an immersion blender. However, store-bought mayonnaise undergoes a much more complex manufacturing process.

In factories, massive machines mix and emulsify the ingredients at high speeds to ensure a consistent texture. Some commercial brands also add preservatives and stabilizers to extend shelf life, which has led to debates over whether store-bought mayonnaise is as “natural” as the homemade version.

One of the biggest shocks for consumers is the sheer amount of oil that goes into mayonnaise. A standard recipe consists of nearly 70–80% oil, leading some to question its healthiness. Seeing a stream of oil being poured into the mixture can be unsettling for those who previously thought mayonnaise was lighter and less fatty.

The Raw Egg Controversy

Another major point of surprise is the use of raw egg yolks. Because raw eggs can carry the risk of salmonella, many people are uncomfortable with the idea of consuming mayonnaise made from unpasteurized eggs. While store-bought mayonnaise typically uses pasteurized eggs to minimize risk, homemade versions require careful handling and fresh ingredients to ensure safety.

Common Misconceptions About Mayonnaise

Many people have misconceptions about mayonnaise that contribute to their shock when they learn the truth:

  1. “Mayonnaise is dairy-based” – Some assume it contains milk or cream, but it is entirely dairy-free.
  2. “It’s bad for you” – While high in fat, mayonnaise is not necessarily unhealthy when consumed in moderation. Some versions use healthier oils like olive oil.
  3. “It’s unnatural” – Despite its processed appearance, mayonnaise is made from simple, natural ingredients.
  4. “It doesn’t spoil” – Some believe that store-bought mayonnaise never expires, but in reality, it does have a shelf life, and homemade versions spoil much faster.

Why People React So Strongly

The shock factor comes from the unexpected nature of the process. The idea of whisking together egg yolks and oil to create a creamy spread is difficult for some to accept, especially when they see it firsthand. Many foods we consume daily go through surprising or unappetizing transformations before they reach our plates, but mayonnaise seems to trigger a particularly strong reaction.

Additionally, the high oil content and raw eggs can make some people uncomfortable, especially those who are health-conscious or wary of food safety risks. On the flip side, others find the process fascinating and enjoy making their own mayonnaise at home, experimenting with different flavors and ingredients.

Should You Make Your Own Mayonnaise?

If you’re feeling adventurous, making your own mayonnaise at home can be a fun and rewarding experience. Not only does it allow you to control the ingredients and flavors, but it also helps you appreciate the art of emulsification. Plus, homemade mayonnaise often has a fresher, richer taste compared to store-bought versions.

Here’s a simple homemade mayonnaise recipe to try:

Ingredients:

  • 1 egg yolk
  • 1 cup oil (olive oil, avocado oil, or canola oil)
  • 1 teaspoon Dijon mustard
  • 1 tablespoon lemon juice or vinegar
  • A pinch of salt

Instructions:

  1. In a bowl, whisk the egg yolk and mustard together.
  2. Slowly add the oil in a thin stream while whisking continuously to create an emulsion.
  3. Once the mixture thickens, add the lemon juice and salt, whisking until fully combined.
  4. Taste and adjust seasoning as needed.
  5. Store in the refrigerator and use within a few days.

Final Thoughts

While mayonnaise remains a beloved condiment, learning how it’s made can be an eye-opening experience. Some are fascinated by the science behind emulsification, while others are put off by the raw egg yolks and high oil content. However, understanding what goes into mayonnaise helps us make more informed choices about the food we eat.

Whether you choose to make your own or stick to store-bought brands, there’s no denying that mayonnaise is a culinary marvel—one that continues to surprise and intrigue people worldwide.