Plastic water bottle caps are color coded based on the type ... blue caps allegedly signify spring water (the water is bottled not long after it naturally comes out of the ground), and black ...

An curved arrow pointing right. Bottled water comes in two varieties. There's purified water, which is water from local sources (a.k.a. tap water) that has been filtered, and there's natural ...

Despite the recent pushback on single-use plastic, bottled water continues to be big business. And the debate over whether mineral or spring water is better than tap has raged for some time ...