39 replies to this topic

[brewman]

Ok, late weekend I brewed the same beer on Saturday and Sunday,  everything is the same on both brews.  Put them both in the same fermentation chamber at the same temps. Opened them up today to take a gravity reading and this is what I found.

 

Saturday's brew,  gravity reading was where final should be 1.010

 

 

Sunday's Brew,  cold not take a gravity reading as you can tell by the thick layer on top.

 

 

 

The only thing I can come up with is that Sunday's brew was a lot colder when I pitched the yeast and it took longer to start up but the difference is so large I'm not sure.

 

Dan

 

[MyaCullen]

sounds plausible, same yeast and pitch rate, right?

[brewman]

Yep, US-05  just rehydrated

[MyaCullen]

Yep, US-05  just rehydrated

give it a couple more days, it sounds like the colder pitch slowed down your east a little

[brewman]

I'm liking the color.

[BlKtRe]

Watch out for the big D bomb!

[MyaCullen]

Watch out for the big D bomb!

should he d rest the cold pitched version then? 3 days at 68? 

[BlKtRe]

should he d rest the cold pitched version then? 3 days at 68?

I'd think it would be a good idea to don't you?

[denny]

should he d rest the cold pitched version then? 3 days at 68? 

 

Very unlikely that will be necessary because of pitch temp.

 

Dan, was the lot number the same on both yeast packs?

[denny]

I'd think it would be a good idea to don't you?

 

Nope, not if he fermented it at a decent temp.  Even if pitched cooler, as long as the bulk if fermentation is at a warmer temp, the yeast will consume the d.

[BlKtRe]

Nope, not if he fermented it at a decent temp. Even if pitched cooler, as long as the bulk if fermentation is at a warmer temp, the yeast will consume the d.

O5 can throw diacetyl easy enough. A d rest is still needed with that strain.

[brewman]

The fermentation temp is 63, I will raise it up some for the D rest after the second one is done.

[brewman]

I'm sorry but I dont know if they were from different lots.

[brewman]

I will say that batch #2 was in the high 50's when I pitched and the first was in the mid 60's.

 

Dan

[denny]

I will say that batch #2 was in the high 50's when I pitched and the first was in the mid 60's.

 

Dan

 

Neither one of those temps is problematic.  I still don't think you need a d rest if the yeast is active. I can't recall ever needing one with that yeast.  If it does throw d while it's really active then the cause of the d is from something else and I don't think raising the temp to make the yeast more active will have any effect.

[BlKtRe]

Neither one of those temps is problematic. I still don't think you need a d rest if the yeast is active. I can't recall ever needing one with that yeast. If it does throw d while it's really active then the cause of the d is from something else and I don't think raising the temp to make the yeast more active will have any effect.

you and I have had this discussion before and we never came to agree with each other. Or maybe it was Basser, or both. Either way its happened to me and I've read on other forums that its happened to others as well. Fermentis does say it has low diacetyl production so there's that.

[MyaCullen]

you and I have had this discussion before and we never came to agree with each other. Or maybe it was Basser, or both. Either way its happened to me and I've read on other forums that its happened to others as well. Fermentis does say it has low diacetyl production so there's that.

basser says Chico is buttery and needs D-rest

 

I have personally not had any butter from 05, but I do get the peach esther

[neddles]

From the pictures it seems like a pretty logical progression. IOW I have had plenty of fermentations look like your Sunday beer and then look like your Saturday beer the following day. I almost always ferment in a 6.5 gal. carboy so I am able to observe this easily.

[Humperdink]

US05 takes forever for the krausen to drop sometimes. No big surprise there from me. 

[MyaCullen]

US05 takes forever for the krausen to drop sometimes. No big surprise there from me. 

and then boom, it's gone