Mussels are not only a delight for seafood lovers, but also a wonder of nature with their diverse properties. These small but powerful shellfish have the impressive ability to filter water – a single mussel can purify up to 75 liters per day, which is crucial for maintaining ecological balance. Mussels find ideal living conditions especially in coastal regions, although their taste can vary depending on the environment – ​​mussels from rocky areas taste more intense, while those from sandy areas are milder. With over 17,000 species worldwide, mussels offer an astonishing diversity in size, color and flavor, especially the Mytilus galloprovincialis, native to Galicia, known for its sweetness and meatiness. Their farming methods are considered particularly environmentally friendly, making mussels a sustainable seafood choice. They also have the fascinating ability to change their sex throughout their lives, which increases their reproductive efficiency. In the kitchen, mussels are a protein-rich and nutrient-dense food, rich in vitamin B12 and iron. Their culinary versatility allows them to be prepared in a variety of ways—whether steamed, baked, grilled, or in soups and stews. In addition, mussels can even form pearls, similar to oysters, making them a treasure of the seas. Mussel farming in Galicia, especially in the bateas*, plays an important economic role and is an essential part of the local culture, celebrated through numerous festivals and culinary traditions. The outstanding quality and unique taste of Galician mussels have secured them a firm place in international gourmet cuisine and underline the region's deep connection with the sea. * Bateas are platforms or structures used to grow mussels in the coastal waters of Galicia, a region in northwestern Spain. These mussel cultures play an important role in the local economy and in the supply of seafood. The bateas are typically made of wood or metal and float on the water. Ropes are attached to them, allowing the mussels to hang and grow. This traditional cultivation system enables the sustainable use of marine resources and is characteristic of the coastal landscape of Galicia.