What happen when cooking oil is mixed soy sauce?

When you mix cooking oil and soy sauce, you'll likely get a separation of the two liquids. Here's why:

* Oil and water don't mix: Soy sauce is mainly water with salt and other ingredients. Oil is a non-polar substance, while water is polar. These types of substances don't readily mix.

* Emulsifiers: Sometimes, small amounts of soy sauce might appear to "disperse" in the oil, but that's usually a temporary effect. There are no natural emulsifiers present that would create a stable mixture. Emulsifiers are special ingredients that help hold oil and water together.

What you can do:

* Use a small amount: Adding a tiny bit of soy sauce to a pan of hot oil can help to add a subtle salty and umami flavor to your dish.

* Emulsify with other ingredients: Soy sauce is often used in stir-fries where it mixes with other ingredients like vinegar or sugar, which can help create a more blended sauce.

Important Note: While soy sauce and oil can be used together in cooking, they rarely form a stable mixture on their own.