13,703
edits
Changes
section for Russian farmhouse yeast
* [https://www.facebook.com/groups/MilkTheFunk/permalink/2102441623117374/ Simonaitis "Data Collection" thread by Zach Taggart, gathering experiences with this blend from MTF'ers.]
* [https://www.facebook.com/groups/MilkTheFunk/permalink/1896745093687029/ See this MTF thread] for culturing and trading project.
===Russia===
Two strains of landrace farmhouse yeast cultures from Russia were analyzed by Richard Preiss of [[Escarpement Laboratories]] referred to by the family names "Rima" and "Marina" (see this [https://twitter.com/larsga/status/889136705571356673 tweet] and [https://twitter.com/larsga/status/887938191721988096 this tweet] by Lars Marius Garshol pending a write up by Lars). Preiss ferormed ITS sequencing, PCR fingerprinting, and mini 7 day ferments with these strains. All of the ''S. cerevisiae'' strains were POF+ (phenol producers).
According to the PCR fingerprinting, Rima contains at least two strains of ''S. cerevisiae'' but maybe more, as well as a strain of ''Pichia kudriavzevii'' (a fairly common beer contaminant). The first strain of ''S. cerevisiae'' was described as "fruity, relatively clean, and fermented similar to WLP001". The second strain of ''S. cerevisiae'' produced high amounts of diacetyl and under attenuated. The ''Pichia' was described as "pretty gross and didn't attenuate much".
Marina contained what appears to be three closely related ''S. cerevisiae'' strains. They all showed pretty low attenuation after one week, but subsequent fermentations can be carried out longer. The flavors were described as "pretty neutral". There is a fourth yeast strain in the Marina that has yet to be identified <ref>[https://www.facebook.com/groups/MilkTheFunk/permalink/1800586383302901/?comment_id=2288654764496058&comment_tracking=%7B%22tn%22%3A%22R%22%7D Richard Preiss. Milk The Funk Facebook group thread update about Russian landrace farmhouse yeast. 09/21/2018.]</ref>.
==Relevant Larsblog Posts and MTF Content==