noble definition: The definition of noble is someone who has high morals and ideals or people who are royalty or who have good breeding. (adjective) An example of noble is a person who is always honest and charitable. An example of noble is a k...
At 104 F, yeast growth begins to slow; at 120 F, yeast begins to die, though some cells might still survive in healthy dough. Once your dough reaches a temperature of 80 F, more lactic acid will accumulate in the dough, giving your bread a buttery flavor with a bigger crumb and crunchy crust.
Most ale yeasts are going to do best somewhere between 60 and 70 degrees. Any higher than 70 on most strains is going to produce fusel alcohols, esters, and possibly diacetyl (if you pitch before bringing down to the right temp). If you go too high, you might kill the yeast all together and get no fermentation.