Plastic water bottle caps are color coded based on the type of water: blue caps indicate "spring water"; black caps signify alkaline water; green caps signal flavored water, and white caps mean ...

There are different colours of bottle caps ... the water bottle has a white colored lid, it means that the water has been ...

There are different colours of bottle caps ... the water bottle has a white colored lid, it means that the water has been purified (processed) by machine and if the lid of the bottle is black ...