Can bacteria grow in water bottles

Soda maker

German tap water is good. If you add sparkling water to your own water instead of lugging it home in the box, you will save time and money. Tap water is around 100 times cheaper with a comparable quality. The mineral content of the purchased bottle of soda is often hardly higher. This was proven in June 2018 by the examination of 52 mineral waters by Stiftung Warentest.

There are now a large number of so-called soda makers on the market. In all of them, normal tap water is carbonated with the help of a carbon dioxide cartridge.

When using it, care should be taken to ensure adequate hygiene. Studies by the Universities of Freiburg and Mainz have in some cases shown high numbers of bacteria in fresh, self-fizzed water.

Noteworthy when using

  • Whenever possible, use glass bottles that are dishwasher safe and clean them both before first use and after use.
  • In the case of bottles that must not be hot-cleaned, you should read the instructions for use to see whether the manufacturer at least allows them to be cleaned with hand dishwashing detergent and a soft brush.
  • Replace scratched bottles with new ones, because germs can more easily get hold of the scratches.
  • When not in use, keep the device and bottle as dry as possible; because germs only grow where it is damp.
  • Do not leave the water in warm places (sun, heating).
  • Additives for a different taste such as syrups and powdered drinks should only be added in the glass. The mostly sugary preparations are an ideal breeding ground for bacteria.
  • Give the water from the previous day to the flowers and prepare new ones.

Things to consider before buying

The quality of the drinking water can also be negatively influenced by pipes or the in-house water installation. If you still have lead pipes in your house, you should have them replaced as soon as possible. In the event of suspicion or uncertainty, you can have your drinking water examined by quality-tested, private laboratories and chemical examination offices.

Make sure that you purchase a bubble system for which you can easily buy more CO2 cartridges. Some vendors have only a few sales outlets or they specify that they can only use a special cartridge model. This can be problematic if the manufacturer discontinues its offer.