Beef stock is a flavorful liquid made by simmering beef bones, meat, and vegetables in water. This process extracts rich flavors and nutrients, resulting in a base that enhances soups, stews, and sauces. Common ingredients include onions, carrots, and celery, often referred to as mirepoix. The cooking time for beef stock typically ranges from several hours to even a day, allowing for maximum flavor extraction. Once finished, the stock can be strained and stored in the refrigerator or freezer for later use. It serves as a versatile foundation for many dishes in culinary practices.