Milk bottles are containers specifically designed to hold and transport milk. Traditionally made of glass, they have a wide mouth for easy pouring and a narrow neck for secure sealing. Today, milk bottles can also be made from plastic, which is lightweight and less prone to breakage. These bottles come in various sizes, typically ranging from one pint to a gallon. They are often labeled with information about the milk's source, such as whether it is from cows, goats, or almonds. Many milk bottles are recyclable, contributing to environmental sustainability efforts.