Micro sampling and results will diagnose micro problems in the brewery.
Overcoming the problems will require consistent and fastidious cleaning and disinfection protocols.
This yeast is very happy, very clean and well cared for. The brewer responsible for this yeast looks after it well. The beer this yeast helps to make is similarly clean and happy.
Wonderful!
Please give casks and kegs an extra special clean after they have been out of use for so long. Lovely fresh beer deserves a clean, infection free home.