In spring 1997, a penac-kat had been installed on the main water inlet of a brewery. Consequently, they confirmed numerous changes:

• No new deposits in the cooling system, existing ones became soft

• Lime separates from the brew during boiling; because of that less unwanted lime bases remain during the brewing process

• During the heating process, lime separates from the water

• Beer in the storage tank clears faster, consequently reduced suspended matter in the beer.

• At the same temperature, the beer ferments faster.

• Even with higher fermentation temperatures no reduction of quality (compatibility)

• Subjectively improved aroma profile

Since the kat was applied shortly after the opening of the brewery, these results could not be compared with previous data. However, the brewery as well as their customers are very happy and they are not prepared to run the brewery without the penac-kat anymore.