Glass Olive Oil Bottle For Oil Sauces Beverages An olive oil bottle is a container specifically designed to hold and dispense olive oil. It is typically made of glass or plastic and has a narrow neck and a pouring spout. The bottle is often dark in color, such as green or amber, to protect the oil from light and prevent oxidation. Some olive oil bottles may also come with a built-in cap or cork to seal the bottle when not in use. The size of the bottle can vary, ranging from small bottles for personal use to larger bottles for commercial purposes.