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There is yeast in all bread no matter how old it is. Yeast is what makes bread rise. It's a type of bacteria that creates air bubbles, making the bread rise and makes it nice and fluffy. There's different varieties of yeast as well. Wet, dry, active, fast rising, bread machine.

So without yeast, you will have something that resembles a tortilla which would fit under the category of flat bread.

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14y ago

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