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4 votes
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Pitching rates and ester formation

The cells are generally not different, it's how they behave is what is significantly different. Yeast have phases they follow when conditions are met they move on. Yeast like all organisms only want ...
Evil Zymurgist's user avatar
4 votes
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How much yeast to add for bottle conditioning

There actually are a number of references in the literature to this issue. In general it seems that a standard target would be pitching (or to be more accurate, ensuring there are) 1 million healthy ...
Franklin P Combs's user avatar
3 votes

Number of cells in a packet of dried yeast

I realize this should be a comment, but it was too long.... Here's what Clayton Cone, head scientist at Lallemand and inventor of Fermaid K, has to say.... Ester and other flavor component ...
Denny Conn's user avatar
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2 votes

Number of cells in a packet of dried yeast

The .75m / ml / °Plato for ales x2 for lagers, George Fix conclusion. Is recommended for pro brewers. Large volume brewing has its own challenges. Volume mass pressures etc. But mainly if a batch ...
Evil Zymurgist's user avatar
2 votes
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Number of cells in a packet of dried yeast

OK. Apart from the (interesting but essentially off-topic) discussion about ester formation as a function of pitching rates, I have since learned the the main cause of my confusion as addressed in the ...
Frank van Wensveen's user avatar
2 votes

Formula for calculating pitch rate

Common advice says 0.75 million cells/ml/°P for ales and 1.5 million cells/ml/°P for lagers. However more modern breweries are upping these numbers just a bit. I can say that calculations really only ...
rob's user avatar
  • 1,783
2 votes
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Formula for calculating pitch rate

If you view the source of the BF website, there is some packed javascript in there that you can run through an online tool to pretty-print some mathematical calculations used on the site. I've tried ...
HomeBrew's user avatar
  • 861
1 vote

Pitching rates and ester formation

To complicate things even more... There is also evidence that heavy "over pitching" of yeast will produce similar higher esters to heavy "under pitching". The rational seems to be that fermentation ...
GrainOfTruth's user avatar
1 vote
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How would I estimate yeast concentration of washed yeast for Mr Malty's calculator?

Without doing a cell count using dye, microscope and hemocytometer. You really won't know the viable cell count. Otherwise it's all just guessing based on apperances and volumes. I would just pitch a ...
Evil Zymurgist's user avatar

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