The origin of bread: About 6000 BC, the ancient Egyptians first mastered the technology of making fermented bread. The original fermentation method may have been discovered by accident: the leftover porridge was invaded by wild yeast in the air, causing fermentation, swelling and souring, and then baked on a heated stone. People were pleasantly surprised to find a new kind of pasta, which is softer and more delicious than the earliest bread "scones" in the world. Around 3000 BC, under very accidental circumstances, the ancient Greeks first invented the residue filtered from brewing sour beer, namely fresh beer yeast to ferment bread.

Barbro, you seem to have typed the wrong word. He is an artist. I hope I can help you.