A kuàng quán shuǐ píng is a bottle specifically designed to hold mineral water — a common, everyday container in China and elsewhere. The word breaks down literally as 'mineral' (矿), 'spring' (泉), 'water' (水), and 'bottle' (瓶). Though 'mineral water' is often translated as kuàng quān shuǐ, the full compound emphasizes both the source (natural spring) and the packaged form. These bottles are typically made of PET plastic, transparent or lightly tinted, and widely used for hydration on the go, during travel, or at work.

In daily life, people frequently refer to this term when discussing recycling, disposal, or reuse — for example, refilling it with tap water or using it for storage. It’s distinct from generic terms like shuǐ píng (water bottle), which could refer to any bottle holding water, and carries a subtle connotation of commercial, bottled beverage rather than homemade or filtered water.