When you drink TEN spring water, you experience water like no other. Many bottled waters can be acidic, but TEN is no ordinary water because it is rich with essential alkaline minerals and electrolytes. The result is a great-tasting and refreshing water with a higher pH, just like water found in the purest glaciers. > Sourced from natural springs, never from a municipal (tap) water source > Stable pH — tested to hold pH in the bottle for a minimum of 2 years > BPA-free bottle