Time to rack your brains, thought this might be a fun game to play.
Why in industrial conical FV's does top cropping ale yeast drop to the bottom instead of the top?
10 points for the 1st right answer
Some yeast will always drop even in a top cropper, won't it?
It will indeed but there is a very good reason for all of it to drop in big Conical FV's.
Big breweries also use this fact to allow them ferment at higher temps
Getting there, in these vessels the yeast doesnt rise and for a yeast head, why?
Is it because of the pressure of the volume of liquid in a large vessel. :-/
Both right ;D
The pressure also suppress the production of fusels and esters which allow them ferment at higher temps, speeding up the process even more.
I thought it was interesting anyway ;)
Good idea this kind of quiz. Helps to put brewing knowledge out there because it makes you search for a answer either in your head :-? or on google :).
Yeah I just came across this fact this morning and was fascinated.
Now I'm wondering does this have some connection with why mass produced beers give me way more of a hangover than micro or my own?
Is the hand over not down to the fact that the big brewers remove yeast by filtration. A hang over is a lack of vitamin B which yeast is a natural source of???
BTW very interesting question on the quiz :) Could this be made a feature of the main page??
Instict says it's more to do with temperature than yeast strain.
If you were to ferment with lager yeast at ale temps you'd get a yeast head the same as an ale yeast because of the more vigorous co2 production?
QuoteIs the hand over not down to the fact that the big brewers remove yeast by filtration. A hang over is a lack of vitamin B which yeast is a natural source of???
BTW very interesting question on the quiz :) Could this be made a feature of the main page??
Far as I know no one has pinned down what causes a hangover, vitamins being one theory
Ok I ay have done a little reading on this :-[
But from what I can make out ale yeasts become hydrophobic as fermentation draws to an end, am I heading in the right direction?