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* [http://suigenerisbrewing.blogspot.ca/2014/12/new-video.html Sui Generis Blog] video guide on how to visually identify usable yeasts versus potential pathogens and molds on agar plates.
* Microbes cannot be accurately identified based on what their pellicle looks like. See [[Pellicle#Pellicle_Appearance_as_a_Microbe_Identifying_Indicator|Pellicle]] for more information.
* Species is difficult to establish from fermentation characteristics or morphology <ref>[https://suigenerisbrewing.blogspot.com/2013/04/old-school-identification-of-wild.html "Old School Identification of Wild Yeasts & Bacteria". Sui Generis blog. 04/10/2013. Retrieved 02/14/2018.]</ref>. DNA sequencing is the only way to be completely sure of the species identification. [https://www.facebook.com/groups/MilkTheFunk/permalink/1989236037771267/ Instructions submitting cultures to Genewiz for Sanger Sequencing ($18-20 US).]
===Growing and Testing===
* [http://suigenerisbrewing.blogspot.ca/2012/11/yeast-banking-iii-stepping-up-to.html Sui Generis Blog] guide to stepping up yeast to pitchable amounts.