Dark soy sauce is thicker and slightly sweeter than regular soy sauce. One key benefit of dark soy sauce is the rich colour it adds to dishes, making food look more appealing. It is commonly used in gravies, fried rice, and noodle dishes where a deep brown shade is desired. Dark soy sauce enhances flavour without overpowering other ingredients. Because it is used in small quantities, it adds depth without increasing saltiness too much. The slow brewing process gives it a mild sweetness that balances savoury flavours well. Dark soy sauce is especially useful in slow cooked dishes, where it helps develop a rich aroma and glossy finish. Used wisely, it improves both taste and appearance of food.