A yeast culture is a pure sample of a strain of yeast. Achieved by plating from dilute slurry onto agar. This yields a pure colony grown from a single cell, which can be used to grow up a new yeast starter as required. A culture an also be stored in a yeast bank for a number of years as insurance against loss of the strain.
5 years ago
Recent Hot AnswersReusing yeast at home
Canning unfermented wort for yeast farming?
Reusing yeast at home
How much yeast do i need for 1bbl batches?