진간장, or "jin ganjang," is a type of Korean soy sauce known for its rich flavor and dark color. It is made from fermented soybeans, wheat, and salt, and is commonly used in Korean cooking to enhance the taste of various dishes. This soy sauce is often used in marinades, soups, and stir-fries, providing a savory umami flavor. Unlike 간장 (ganjang), which is lighter and saltier, 진간장 has a deeper taste and is typically used for seasoning and dipping. It is an essential ingredient in many traditional Korean recipes, contributing to the overall depth of flavor in dishes like 불고기 (bulgogi) and 김치찌개 (kimchi jjigae).