Fermentation is where dinner meets discovery. In On Fermentation, P. Schutzenberger turns bubbling vats and rising dough into a clear-eyed journey through chemistry at work. Yeast changes everything we eat. Written as a lucid public science lecture and a rigorous scientific treatise text, this chemistry monograph classic follows the fermentation chemical processes that shape wine, beer, bread, and the living cell. Schutzenberger explains yeast and fermentation with the precision of nineteenth century chemistry, while pointing towards the emerging language of enzymes and metabolism that would later define biochemistry. Read it for the pleasure of method: careful observation, sharp definitions, and the fascination of watching invisible agents transform matter. Its place in French science history is secure, arriving in the same intellectual climate that made Louis Pasteur fermentation a household phrase and pushed debates about life, microbes, and chemical change into the modern era. For students, it can serve as a food science study guide; for researchers and collectors, it remains a classic biochemistry reference and a window onto how foundational ideas were first organised. Curious cooks, home brewers, and history-minded readers will still find its reasoning as satisfying as its results. Republished by Alpha Editions in a careful modern edition, this volume preserves the spirit of the original while making it effortless to enjoy today - a heritage title prepared for readers and collectors alike. Offered here as a complete text edition, it belongs on the shelf beside the great laboratory narratives and among the enduring classics of scientific reading.