September, Friday 20, 2024

Is genetically modified beer something you would be ready to consume?


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Charles Denby is the CEO of Berkeley Yeast, a leading company that specializes in genetically-modified (GM) yeast for the brewing industry. The company edits the DNA of yeast strains to enhance desirable flavors, suppress undesirable flavors, and even generate new flavors. Berkeley Yeast's products include Tropics yeast, which is engineered to provide the taste of passion fruit and guava, eliminating the need for additional ingredients and reducing environmental impact. Apart from adding flavors, Berkeley Yeast also has yeast strains that help eliminate off flavors in beers and shorten the brewing process for certain styles. Craft breweries across the United States, such as Temescal, Alvarado Street, and Cellarmaker, already use Berkeley Yeast's products. However, selling overseas is challenging due to strict legislation that restricts GM use in the food and drink industry. Another company, Omega Yeast Labs in Chicago, has also discovered a gene that causes haze in beer and used gene-editing technology to create haze-free yeast strains. While some US brewers openly use gene-edited yeast, many breweries remain hesitant due to the negative perception surrounding GM technology. Carlsberg, one of the world's largest beer companies, follows a no-GM policy and focuses on naturally breeding new varieties of barley and hops. The company aims to improve crops' tolerance to heat and drought through traditional cross-pollination methods. While there is debate and opposition to GM beers, some brewers are hopeful about the possibilities. The ultimate goal is to engineer an India Pale Ale (IPA) that remains fresh, consistent in taste, and has long-lasting hop flavors.