For those of you interested I thought it would nice to read how yeast is made. Bread yeast, also known as baker's yeast or Saccharomyces cerevisiae, is typically commercially produced on a large scale. The process of making bread yeast involves several steps: Isolation: Yeast strains suitable for bread production are selected and isolated. These strains are typically chosen for their ability to produce carbon dioxide gas, which helps dough rise, as well as their flavor profile and other desired characteristics. Propagation: The isolated yeast strains are then grown and propagated in a controlled environment. This involves creating a suitable growth medium that provides the yeast with the necessary nutrients, such as sugars, amino acids, and minerals. The yeast is allowed to multiply and thrive in this environment. Harvesting: Once the yeast has multiplied to a desired level, it is harvested. This can be done through various methods, such as centrifugation or filtration, to separate the yeast cells from the growth medium. Washing: The harvested yeast is then washed to remove any impurities or unwanted substances that may have accumulated during the growth process. Drying: After washing, the yeast is typically dried to reduce its moisture content and increase its shelf life. There are different drying methods used, such as spray drying or drum drying, to remove the moisture from the yeast while preserving its viability. Packaging: The dried yeast is packaged into appropriate containers, such as packets, jars, or vacuum-sealed bags, to protect it from moisture and ensure its freshness. It's important to note that commercial bread yeast production is typically carried out by specialized yeast manufacturers using controlled and sterile environments to ensure consistent quality and purity of the yeast. The process may vary slightly between different yeast manufacturers, but the overall principles remain similar. Home bakers can purchase commercially produced bread yeast in various forms, such as active dry yeast or instant yeast, to use in their bread baking.