Quote:
Originally Posted by
hi-val 
Thanks for the link. That's very specific to champagne production. The long periods of time that it has to sit are due to remuage, the very slow process of tilting the bottles so the lees settle at the top of the neck. The time required is due to the desire not to shake up the yeast, not to let the yeast die. Certainly, some yeast bodies make it through fining, though I'm still skeptical about there being live and active cultures once placed in a final container. There simply isn't a climate conducive to yeast life.
I thought vintners rotate each bottle periodically for years in order to rouse the yeast so they
don't settle out. Yeast doesn't die when it runs out of food it simply produces glycogen which is stored for later use and then it goes dormant. It will stay dormant indefinitely under proper storage untill at some point autolysis occurs. Scientists extracted yeast that was found in a piece of amber millions of years old and successfully brewed beer from it. All yeast care about just like anybody else is reproduction. Once they reproduce they eat everything around them and then go to sleep so to speak.
Tannins, which are a big part of a wines flavor profile, are something beer makers don't want in their beer because the flavor is undesirable.(It gives beer an iced tea flavor often described as puckering or drying on the tongue) Barley and other grains as well as hops have tannins which will combine with protiens and precipitate haze from solution at certain temps(chill haze). Beer makers ad finings to casked beer to force proteins to settle out, or irish moss during the boil which will leave unwanted protiens in the trub (sediment) after primary and secondary fermentation.