Fermentation technologies vary based on microbial processes and feedstocks. Traditional fermentation uses naturally occurring microbes for food and beverage production. Precision fermentation employs engineered microbes to produce specific proteins, enzymes, or fats for food and medicine. Biomass fermentation grows microbial biomass directly as an alternative protein source. Gas fermentation utilizes microbes that feed on carbon gases to create biofuels and chemicals. Solid-state fermentation optimizes enzyme and bioactive compound production from fungi and bacteria in low-moisture environments. These innovations are driving sustainability and efficiency across multiple industries.