13,703
edits
Changes
added Sour Weapon (Pediococcus pentosaceus Blend)
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! Name !! Mfg# !! Taxonomy !! Note
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| [[Bootleg Biology]] || Sour Weapon (Pediococcus pentosaceus Blend) || P. pentosaceus blend || Perfect for acidifying unhopped wort quickly for kettle or “quick” sours. At 98F, it’s capable of achieving a pH of 3.3 within 18 hours. At 84F, it can reach a pH of 3.5 within 24 hours. With more time, a terminal ph of 3.1 may be reached. ''P. pentosaceus'' can also be used for long-term sours. It is capable of growing and producing lactic acid in worts with IBUs as high as 30, though it is recommended for unhopped worts as IBUs over 10 may prevent significant souring. This culture may produce antimicrobials called bacteriocins or pediocins. These can inhibit and kill similar species of bacteria like Lactobacillus and other Pediococcus species in mixed-culture fermentations. Read our [https://www.facebook.com/BootlegBiology/photos/a.148869931970401.1073741829.124634287727299/465185997005458/?type=1&theater Facebook post] regarding bacteriocins for more info. No signs of ropiness (exopolysaccharides) have occurred in testing <ref>[http://bootlegbiology.com/product/sour-weapon-pediococcus-pentosaceus-blend/ Bootleg Biology website. Retrieved 05/06/2016.]</ref>.
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| [[Inland Island Brewing & Consulting]] || INISBC-998 || damnosus || Gram positive cocci that produces lactic acid. Also produces diacetyl and several proteins that may cause a "rope" to form in the beer. Rope will disappear with time. Oxygen and hop sensitive. 75-90°F Temperature Range.
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| [[RVA Yeast Labs]] || RVA 601 || damnosus || Lactic acid bacteria used in souring Belgian-style beers such as gueze and Lambic. Acid production increases with storage. Temperature range is 60-95º F.
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| [[White Labs]] || WLP661 || damnosus || High diacetyl (a.k.a. butter) producer and slow growing. Fermentation temp: 70-85°F (21-29.4° C). Attenuation: 65%. Cell count: 50-80 million cells/mL <ref name="WL_cellcounts">Private correspondence with White Labs Customer Service and Dan Pixley. 10/29/2015.</ref>. Homebrew vials contain 35 mL of slurry, and ~1.75-2.8 billion cells per vial <ref name="priess_pitches">[https://www.facebook.com/groups/MilkTheFunk/permalink/1170980479596831/?comment_id=1171066879588191&reply_comment_id=1171595552868657&total_comments=6&comment_tracking=%7B%22tn%22%3A%22R9%22%7D Conversation with Richard Priess regarding WL and Wyeast homebrew pitches. 10/30/2015.]</ref>.
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| [[Wyeast]] || 5733 || damnosus (previously listed as ''P. cerevisiae'') || May cause “ropiness” and produce low levels of diacetyl with extended storage time. Temp range: 60-95° F (15-35° C). Cell count: 1.0 x 10<sup>8</sup> (100 million) cells/mL <ref>[https://drive.google.com/folderview?id=0B8CshC9nxYHdZmE4MmoyLXA2WVk&usp=sharing Wyeast Specifications 2015 Retail Products. 2015.]</ref>. Homebrew packs contain 100-125 mL of slurry, and ~10-12.5 billion cells <ref name="priess_pitches"></ref>.
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