Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Weird yeast chunks in yeast 1968 pack
Reply
 
Thread Tools
Old 02-03-2013, 09:57 PM   #1
fatnoah
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2012
Location: Chicago, IL
Posts: 152
Liked 14 Times on 14 Posts

Default Weird yeast chunks in yeast 1968 pack

So I brewed my first all-grain batch yesterday. It was a 2.5 gal BIAB oatmeal stout based on the recipe in BCS. OG was 1.052 and it was 2.5 gal batch so I calculated that just the wyeast 1968 (London ESB) pack would be sufficient to get the job done. I smacked it and it inflated like you would expect. But when I went to pitch it the liquid was not that creamy yeasty mix that I am used to. Instead it looked like wort and in that little inner pouch were what I think were chunks of yeast. So I tried to shake those out into the fermenter, but it definitely had me worried. Today it is fermenting, but the krausen seems a little thin and I am a little worried that there were significantly fewer live yeast cells than I thought. I guess make a starter no matter what next time.


fatnoah is offline
 
Reply With Quote
Old 02-03-2013, 10:00 PM   #2
MachineShopBrewing
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2009
Location: Montrose, MN
Posts: 1,053
Liked 68 Times on 54 Posts
Likes Given: 38

Default

Don't worry. English yeasts are supposed to look like that. They look more like a yeast gelatin than a yeast slurry.


MachineShopBrewing is offline
 
Reply With Quote
Old 02-04-2013, 01:38 PM   #3
fatnoah
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2012
Location: Chicago, IL
Posts: 152
Liked 14 Times on 14 Posts

Default

Thanks for the reassurance. Is that strain typically a fast fermenter? Definitely slowing down today.
fatnoah is offline
 
Reply With Quote
Old 02-04-2013, 03:03 PM   #4
MachineShopBrewing
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2009
Location: Montrose, MN
Posts: 1,053
Liked 68 Times on 54 Posts
Likes Given: 38

Default

Yeah. It's usually done for me in under 4 days. I leave it sit for 7 and then rack if it's done.
MachineShopBrewing is offline
 
Reply With Quote
Old 02-16-2013, 09:48 PM   #5
fatnoah
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2012
Location: Chicago, IL
Posts: 152
Liked 14 Times on 14 Posts

Default

Just an update. It's been 2 weeks since brew day. Took a gravity reading today and it was 1.022. With an OG of 1.052 I definitely want to get that down a few more points. Hydrometer sample tasted great actually and the beer is reasonably clear. I decided to rack to a secondary (which I usually don't do) in the hopes that the yeast that make it over to the new vessel will wake up a bit and get me those last few points. The two lessons I am taking away from this experience are: always make a starter with liquid yeast no matter what, and all grain is awesome.
fatnoah is offline
 
Reply With Quote
Old 02-16-2013, 10:18 PM   #6
MachineShopBrewing
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2009
Location: Montrose, MN
Posts: 1,053
Liked 68 Times on 54 Posts
Likes Given: 38

Default

1968 can be a picky yeast. I have had it drop completely out of suspension and stall with only a 1 degree temperature drop. It is really important with that yeast to maintain a steady temp, or better yet, a slowly warming ferment. I usually pitch that one around 65-67 and ramp it up to 70 or so over 7 days. I would try warming it up to 70-75F to try to get it to finish out.

Or, you can use 1098 next time, which will give you a similar flavor profile without being as finicky. The 1098 will ferment out drier though, so you have to account for it in recipe and process formulation.


MachineShopBrewing is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Floating moldy yeast chunks Zabuza General Beer Discussion 6 09-27-2012 04:01 PM
big chunks of yeast floating Bart42 Beginners Beer Brewing Forum 5 09-22-2012 02:08 PM
Suspended chunks of WLP002 English Ale yeast? riromero Fermentation & Yeast 4 10-12-2009 09:40 PM
White chunks in my yeast starter? Already boiling! Abe_Froman Beginners Beer Brewing Forum 4 06-15-2009 09:56 PM
1968 London ESB Ale Yeast Exo Recipes/Ingredients 4 08-02-2006 09:00 PM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS