Beer stone

Bierstein denotes:

• Unwanted calcareous deposits during the brewing process in kettles and pipes similar to boiler scale . It consists mainly of calcium oxalate and is often difficult to spot. Since it provides shelter for bacteria ( lactic acid bacteria ), it is removed with a thin layer of disinfectants, for example, and with larger deposits with acidic cleaning .
• Formerly a name for evaporated hopped wort that was kept in solid form for years. It was exported to warmer areas, where it was dissolved in water as a substitute for beer, which otherwise would spoil quickly in these areas.
• Americans use the English word beer stein for a drinking vessel, which they find typically German. The word developed from the German word Steinkrug .

Individual evidence

1. ^ Bierstein at Brewing Culture Franconia .
2. ^ Ludwig Narcissus : demolition of the brewery . Ferdinand Enke Verlag, Stuttgart, 1980, ISBN 3-527-30860-1 . 4th edition, pp. 222, 223.
3. ↑ Dana Johnson: Removing Beer Stone , Modern Brewery Age., 1998
4. ↑ Cleaning and disinfection in the brewery (PDF; 259 kB), information material on organic farming and the processing of organic products for training and further education in the food trade and the food industry.
5. ^ Meyers Konversationslexikon, Bibliographisches Institut, 4th edition 1885-1892 .