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Bottled Water Glossary: Bottled Water Terms & Definitions

Artesian Well Water

Bottled water is considered artesian water when it is sourced from an artesian well. An artesian well is groundwater found between layers of non-porous rock, like clay or shale. The key difference between an artesian well and a non-artesian one is that the water is naturally under pressure and rises to the top of the well on its own without the use of a pump.

Bottled Water

Any type of drinking water that is packaged in plastic or glass bottles. For a product to be bottled water it must not contain any sweeteners or chemical additives apart from flavors, extracts, or essences and it has to be sugar-free and calorie-free. If flavors, extracts, and essences are used, they must comprise less than 1% by weight of the final product. Beverages that contain more than this are classified as soft drinks.

Bottle-Free Water Cooler

A point-of-use water dispenser that is plumbed directly into a home or office’s water supply. The unit typically includes multiple stages of water filters and temperature control options. With a bottle-free water cooler system, you get all the benefits of a bottled water cooler without having to deal with the delivery of bottled water jugs.

Distilled Water

Distilled water is a type of water that has under gone a distillation process to remove impurities. Distillation is a process where the water is boiled and the resulting steam is condensed and collected into a new clean container. Distilling water is important, especially in areas where the water is not safe to drink without proper treatment. Distilled water is also often used in medical applications like CPAP machines where any impurities may damage the medical device.

Fluoridated Water

Fluoridated water is water that has been supplemented with the addition of fluoride. This added fluoride is effective in the prevention of cavities. The fluoride in fluoridated water is derived from compounds like sodium fluoride or sodium monofluorophosphate. The most common compounds used for fluoridating water in the U.S. are hexafluorosilicic acid (H2SiF6) and its salt sodium hexafluorosilicate (Na2SiF6).

Mineral Water

Mineral water is a type of bottled water that contains a minimum of 250 parts per million of dissolved minerals. Said minerals are required be present from the source and cannot be added to the water after the fact. Often this type of water is derived from a mineral spring containing salts and sulfur compounds. In some cases, mineral water may contain naturally dissolved gasses making the water effervescent or sparkling.


Ozone, also known as trioxygen, is an inorganic molecule that has the chemical formula O3. Ozone takes the form of a bluish gas with a distinct odor. Ozone is naturally present in low concentrations throughout Earth's atmosphere. Ozone has a strong oxidizing potential. This potential makes it an excellent alternative to chlorine for destroying organic compounds in water. The major benefit of using ozone instead of chlorine is that unlike chlorine, ozone quickly dissipates, leaving behind just the pure water.

Purified Water

Purified water is water which has undergone a filtration process to remove impurities. The most common type of purified water used to be distilled water. Recently, however, other processes like reverse osmosis, deionization, activated carbon filtration, microfiltration, ultrafiltration, ultraviolet disinfection. Often times, these processes are used in conjunction with one another to create water that is so highly pure that any trace contaminants are measured in parts per billion, rather than parts per million.

Spring Water

Spring water is a type of water that is sourced from an underground geological feature, called a spring, where the water flows naturally to the surface. Throughout history, humans have been using springs for a variety of purposes including drinking water, irrigation, mills, navigation etc. In modern times we use springs as a source of fresh, delicious bottled water.

Well Water

Well water is water that comes from a structure in the ground created by digging or drilling a deep hole to access groundwater found in underground aquifers. Well water is drawn to the surface through the use of a manual or electric pump, or by using containers, like buckets, that are raised mechanically or by hand. Many homes in the US have private wells as their primary source of water. It is important to note that FDA and EPA regulations protect bottled water and public drinking water systems respectively. It is the responsibility of the homeowner to maintain water safety on private wells.

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