Can yeast in bread making machine produce carbon monoxide?
To the extent that “WhereMyQ&AIs” understands this question, the substance irritating your eyes and your nasal and throat airways is ethanol (that’s better known as grain alcohol, and it’s the alcohol in booze that gets you drunk if you drink it) that boiled off in the baking of the bread. The fermentation of bread dough, in addition to making the dough rise, synthesizes ethanol. Baking bread, however, boils the ethanol into a gas and drives it off, so baked bread does not have the flavor of ethanol. You’re using a bread-making machine, which is essentially a miniature oven. These have to have airtight seals in order to function correctly; that most likely traps any vaporized ethanol inside. But opening the lid breaks the seal–and at the sudden release of the ethanol, “Katie, bar the door!” Here do be the hope of being right.
