The Goal of Propagation Is Beer Production

We want to produce yeast that meets our pitch rate targets. So we do not want any batch-to-batch variability. If we propagate in January and we propagate in December, we should see exactly the same situation. We're making the yeast ready for a marathon, not a sprint. That's the crab tree effect. And that Sacramisee-Serevisiae is crab tree positive.