Ayinger
Posted: Tue Mar 15, 2016 11:28 pm
I also did a specially arranged "technical" tour of Aying and the guide explained that nowadays decoctions are only used in the dark beers.
Another interesting tidbit was that they heat treat the wheat beers at 60°C to improve stability and "stop undesirable processes in the bottle while not breaking down the yeast". The wheat beers are centrifuged whereas everything else goes through the kieselguhr filter.