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==Wild ''Brettanomyces''==
''Brettanomyces'' is notoriously difficult to bioprospect from the wild. For example, a an ongoing survey of wild yeasts in most of the US which isolated nearly 2,000 isolates with 262 unique species did has not find yet found a single occurrence of ''Brettanomyces'' in the wild (they so far have only surveyed non-human inhabited wild areas of the US) <ref>[https://www.biorxiv.org/content/10.1101/2021.07.13.452236v1 Substrate, temperature, and geographical patterns among nearly 2,000 natural yeast isolates
William J. Spurley, Kaitlin J. Fisher, Quinn K. Langdon, Kelly V. Buh, Martin Jarzyna, Max A. B. Haase, Kayla Sylvester, Ryan V. Moriarty, Daniel Rodriguez, Angela Sheddan, Sarah Wright, Lisa Sorlie, Amanda Beth Hulfachor, Dana A. Opulente, Chris Todd Hittinger. bioRxiv 2021.07.13.452236; doi: https://doi.org/10.1101/2021.07.13.452236.]</ref>. While it has been alleged by many that the natural environment for ''Brettanomyces'' is the skins of fruit or the bodies of insects, it wasn't until 2007 that science was able to show that ''Brettanomyces'' survives on the skins of grapes, although it does so in a very low population and a possibly [[Quality_Assurance#Viable_But_Nonculturable|"viable but not culturable"]] state. Renouf et al. (2007) and Comitini et al. (2019) demonstrated that an "enrichment ''Brettanomyces bruxellensis''" media called EBB is more efficient at first growing up ''Brettanomyces'' before trying to culture it on DBDM. ''Brettanomyces'' was allowed to grow for 80 days in the EBB media, and then streaked onto DBDM for selection for ''Brettanomyces'' (other wild yeast such as ''Hanseniaspora'' and ''Pichia'' grew much more readily than ''Brettanomyces'' that was cultured from wine grapes).