Good Herbs uses the highest grade, contaminant-free distilled water possible. A special distillation process (unlike most distillation systems) removes volatile industrial and agricultural chemicals, heavy metals, radioactive elements, bacteria and viruses. The water is chlorine and sodium free. Further, any remaining dissolved gases are removed from the water. This process is completed twice: once before and once after the distillation. The result: A quality product that is cleaner, purer and more full-bodied.