Yeast Breeding with Classical Methods

Aim
– To construct fast fermenting yeast strains with
good brewing performance for production of
palatable lager beer
– To construct yeast strains for new products with
divergent flavour profiles

Approach
– To hybridise different brewer’s yeast strains

Breeding Parameters
• Fast fermentation
• High attenuation
• Good sedimentation
• +/- Esters
• +/- Sulphur compounds
• More sulphite
• Less diacetyl


How Do We Breed Yeast?
• Get access to culture collections with
brewer’s yeasts of different origin
• Test strains in small scale
• Identify strains with interesting
characteristics