yeastiness

noun

1. (uncountable)The state or condition of being yeasty.

   “You, no doubt, will come to your own conclusion, based on yeastiness and maybe “crumb factor” and possibly “hole-to-dough ratio.””

   “I'd like to be able to dismiss it all as superficial and irrelevant to what was really going on, people arguing about Hegel and so on, but I'm forced to admit there was a yeastiness in the air that was due to a great deal of unrestrained and irreverent frivolity […]”