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PNG images: Water Bottle

A water bottle is a container that is used to hold water, liquids or other beverages for consumption. The use of a water bottle allows an individual to transport, and drink, a beverage from one place to another.

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A water bottle is usually made of plastic, glass, or metal. Water bottles are available in different shapes, colours and sizes. In the past, water bottles were sometimes made of wood, bark, or animal skins such as leather and sheepskin. Water bottles can be either disposable or reusable. Reusable water bottles can also be used for liquids such as juice, iced tea, alcoholic beverages, or soft drinks. This water bottle form can help save the environment, through reducing waste.

Easily portable, water bottles make for convenient use, while typically containing nutrition facts and fluid ounces.

Water bottle sales have increased almost every decade in the United States for more than a decade. In 2011, greater than $11 billion was spent on U.S. bottled water products. The International Bottled Water Association (IBWA) states that Americans are increasingly relying on water bottles for convenience and portability.

Multi-use water bottles can be made from high-density polyethylene (HDPE), low-density polyethylene (LDPE), copolyester or polypropylene. All offer the advantage of being durable, lightweight, dishwasher-safe and BPA-free. The main difference between each type of water bottle is the flexibility of the material. Copolyester and polypropylene bottles offer the greatest rigidity. HDPE bottles retain some flexibility, while LDPE bottles (most commonly associated with 'squeeze' type bottles) are highly flexible and collapsible.

Metal water bottles are growing in popularity. Made primarily from stainless steel or aluminum, they are durable and retain minimal odor or taste from previous contents. Aluminum bottles often contain a plastic resin or epoxy liner to protect contents from taste and odor transfer. Although most liners are now BPA-free, older and less expensive models can contain BPA.

It is not recommended to fill aluminum bottles with acidic liquids (e.g. orange juice), as this could cause aluminum to leach into the contents of the bottle. Stainless steel bottles do not contain a liner but have been known to transfer a metallic taste and odor to contents. Bottles made with food grade stainless steel (Grade 304, also known as 18/8) do not transfer taste or odor. Depending on the type of source material and manufacturing process behind your stainless steel bottle, trace amounts of minerals can leach into contents.

Metal water bottles can be heavier than their plastic counterparts and readily transfer temperature of contents to external surfaces, which makes them unsuitable for use with unusually hot or cold liquids.

This type of bottle is often BPA-Free and more commonly uses carbon (activated charcoal) filtration. UV light can also be used to purify water. UV filtration bottles are popular and convenient for those who are traveling to areas where water quality may be harmful, or where bottled water is not readily available. UV is effective against all water-borne pathogens.

Carbon filtration bottles will eliminate some organic chemicals and improve the taste and odor of water. Carbon filtration will not eliminate pathogens, metals or nitrates from water. Carbon filters must be changed regularly to maintain effectiveness.

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