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Clearing the Yeast

Degas First!

 

The majority of the yeast is heavy and will sink to the bottom of the liquid. However, there are small amounts of dormant yeast cells that are small and remain suspended throughout the mash. Also suspended are CO2 gas bubbles that are throughout the mash and has not risen to the top. If you use the clearing agent before degassing the efficiency of the clearing agent will be 75% of less depending on how thick the mash is. Degas first!

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Fermenting Finished

Fermenting Finished

At this point the top of the fermented mash looks like a wart and hence the finished fermented liquid was called wart.

The air lock has stopped bubbling.

The yeast sediment collects on the bottom.  Siphon off the liquid in the ferment container carefully leaving the yeast sediment undisturbed on the bottom.  That bottom thick layer is yeast (not dead but dormant).  This slime like layer is to be thrown out.

 

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Ferment Period

Lag Period

This is a period of 2 to 3 hours where the yeast is multiplying through out the liquid.  Reproduction stops at 50 million cells per milliliter.  Any remaining oxygen in the mix will be carried away by the CO2 bubbles.  Any oxygen introduced after fermentation begins will oxidize and leave a stale taste in the mix -- a ruined batch.  

Fermenting Process