Comparative form of yeasty: more yeasty(adjective)
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Use "yeastier" in a sentence
"Since I baked more this time, the dough got a lot yeastier, and also softer."
"They trucked these, and many more like them, in from Hamtramck and they were tasty--yeastier than a regular donut and the not-overly-sweet prune filling helped my grown up taste buds handle the sugary richness."
"For those interested in yeastier brews, Bambino offers a small selection of beers from the U.S.,"