chefmike
Well-Known Member
According to Mr. Malty's calculator, you'd only need about about 86ml of yeast slurry to pitch into 5 gallons of 1.050 SG wort. There's significantly more than that in a used cake.
Is there an advantage to using the whole thing over the amount recommended by Mr. M?
or
Is it advantageous to scoop out most of the slurry (with sanitized utensil of course) and be closer to the recommendation than to use the entire cake?
Inquiring minds wanna know.
I have been beaten into submission by an unnamed, yet knowledgeable brewer that one should use a calculator (such as mr malty) and determine the correct amount of slurry to pitch and to do so into a SANITIZED fermenter. So you are pitching the slurry, not racking into a used, dirty, nasty fermenter because that would be bad. very bad. You get smacked with rolled up newspapers for doing it.
So yes, it likely is advantageous to pitch the calculated amount of yeast for the highest quality finished product. You can have less desirable results dumping new beer on old cakes. Still good. Still beer. Still done by me on occasion (5 in a row this fall...)
But it is BETTER to scoop out the slurry and put the measured amount in a sanitized fermenter and add your fresh wort.