Elements and beers and effect of some metals ions on colloidal stability of beer

Many ions have to be in a certain concentration range to be suitable for the brewing process and / or the subsequent beer. In case the concentration of some metal ions, especially of Mn2+ and Fe2+, are too high chill haze can be formed. This causes economic losses for the brewing industry. Chill haze is due to the precipitation of protein-polyphenol-metal complexes under inadequate storage conditions. Metals ions in beer originate from water, malt, hop or filtration aids. No restriction in concentration holds for silicon in beer. This element is best as high as possible in beer.

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