Fair enough cant really argue with Dr Cone, It is unfortunately extremely difficult to get firm consistent numbers for dry yeast.
In the Saf US-05 speck sheet attached there appear to be three quite different statements on the amount of yeast you should use, but the one I find most telling is the last one down the bottom with the other microbial information "*when dry yeast is pitched at 100 g/hl i.e. > 6 x 106 viable cells / ml" so at 1g/l we should be getting more than 6 million cells / mL (we don't know how much more), but based on the pitch calculation used above we want 0.7 X10^6 * 14.7 = 10.3X10^6, getting close to 1.5g/L. quite at odds with the pitch rate recommended earlier on the same page.
It wasn't my intention to take this thread off into a detailed discussion on pitching rates, more to emphasise how important it is to use an appropriate amount of healthy yeast to insure good quick clean fermentation as one of the keys to making good beer
Mark
View attachment SafaleUS05.pdf
In the Saf US-05 speck sheet attached there appear to be three quite different statements on the amount of yeast you should use, but the one I find most telling is the last one down the bottom with the other microbial information "*when dry yeast is pitched at 100 g/hl i.e. > 6 x 106 viable cells / ml" so at 1g/l we should be getting more than 6 million cells / mL (we don't know how much more), but based on the pitch calculation used above we want 0.7 X10^6 * 14.7 = 10.3X10^6, getting close to 1.5g/L. quite at odds with the pitch rate recommended earlier on the same page.
It wasn't my intention to take this thread off into a detailed discussion on pitching rates, more to emphasise how important it is to use an appropriate amount of healthy yeast to insure good quick clean fermentation as one of the keys to making good beer
Mark
View attachment SafaleUS05.pdf