THE BOTTLED WATER
Bottled water is very popular. Some people believe that some types of water, containing high levels of certain minerals, are actually good for you.

There are two main styles of bottled water, sparkling and still. Sparkling water may be naturally carbonated with carbon dioxide, but the gas is usually added during processing. Microbes do not survive in sparkling water because the dissolved carbon dioxide makes it acid.

Most bottled water comes from springs or deep boreholes, is bottled at source under hygienic conditions and is not treated with chemicals. As a result, it can contain harmless, natural water bacteria. These gradually die off in the bottle during storage as they use up the small amount of nutrients. The type of bottled water known as table water can receive various treatments, some of which reduce the numbers of microbes.