Thursday, January 20, 2011

Yeast Propagation Tools





To help grow viable yeast before pitching, I built a stir plate. The first model I made turned out to be underpowered and so with this one, I went with a larger motor and clear acrylic so that I could spot what was going on if there was a problem.




 





The dial on the right allows us to adjust the motor so we get the perfect speed depending on yeast starter size.





Although this is just water, the stir plate allows more oxygen into the yeast starter. This, combined with the fact that it also keeps the yeast in suspension, helps to grow larger and healthier quantities of yeast which in the end help to produce a better fermentation.


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