Municipal water Flashcards
What is a municipal water supply?
A municipal water supply may come from a mixture of several sources, each with different mineral compositions.
What is a potential issue for brewers regarding municipal water supply?
Brewers may need to adjust their water treatment or mineral additions due to varying water compositions.
What is an advantage of using municipal water for brewing?
The water should comply with local drinking legislation and be potable.
Why might municipal water be chlorinated?
To meet microbiological standards for safety.
What off-flavour can chlorine cause in beer?
Chlorophenol.
What problems can high levels of chlorine in brewing water cause?
- Damage to membrane filters
- Localised pitting of stainless steel
- Stress corrosion
True or False: Chlorine can be aggressive to stainless steel.
True.
What must brewers do with chlorinated water before brewing?
Remove the chlorine.
What might a brewery need to install if using surface or ground water directly?
Equipment to meet potability standards.
Fill in the blank: Municipal water supply may alternate sources, supplying water of different __________ at different times.
compositions.
What is the risk associated with damp chlorine gas at high temperatures?
Localized pitting and stress corrosion.
