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.
It is imperative that one avoids temperature shock (no more than 5-7C differential between culture and must temperature). Temperature shock kills great numbers of yeasts. For example, adding a yeast culture at 104F/40C to a must at 60F/15C kills about half the cell population.