Unusual sediment at the end of the fermentation

Methods, ingredients, advice and equipment specific to all-grain (mash), partial mash (mini mash) and "brew in a bag" (BIAB) brewing.

Unusual sediment at the end of the fermentation

Postby ianmcc » Sunday Oct 12, 2014 6:56 pm

Hi,

Something a bit different today when I transferred my brew from the fermenter into the keg. Big gelatinous blobs of what I hope is yeast. Completely different to every other brew I've done in the past, where its been a fairly uniform consistency slightly grainy sediment. I'm wondering if something has gone wrong (or right?). The fermentation went well, and I chilled it to 3.5 degrees before transferring it. Probably the clearest looking brew out of the fermenter I've ever had. This was the first time I used a rubbermaid mash tun rather than BIAB, that is about the only difference I can think of.

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Re: Unusual sediment at the end of the fermentation

Postby ianmcc » Sunday Oct 12, 2014 7:28 pm

Update: final gravity is 1.003 for an alcohol content of 5.1%. That is probably the lowest final gravity I've ever had.

This was the second batch of a recipe based on drsmito's Landlord ale clone (I used WGV instead of goldings and some crystal malt because that is what I happened to have in the cupboard. Aside from that it matches the recipe at viewtopic.php?f=11&t=7982&start=260#p113263). The first batch had a final gravity of 1.010. Between the two batches, I bought a rubbermaid mash tun. I also used O2 to oxygenate the wort, for the first time. (I think I never understood the idea of wort aeration before...). I used a yeast starter based on a recipe I found on these forums (probably also from drsmuto?), splitting it and keeping 1/4 built into another starter for the second batch.
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Re: Unusual sediment at the end of the fermentation

Postby rwh » Tuesday May 19, 2015 10:49 am

My guess is that that is either break material or clumped yeast. Some strains of yeast will do that; you should see what some of the saison yeasts do... they look much like that but the clumps float on the surface of the beer!
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