Another US-05 experiment... temperature fluctuations

[Spartangreen]

subbed

 

[Mattums]

Thanks for doing this experiment and posting the results!

 

[boydster]

Subscribed, thanks for putting in the effort here, good info!

 

[looneybomber]

This thread makes me want to get some 1gal jugs and try this same thing but with different yeasts. Subbed.

 

[ere109]

Awesome concept.

 

[NorthSide]

subscribed... i appreciate it.

 

[nateburn]

I like it 05 is my Citra Pale Ale yeast

 

[AT-JeffT]

DA = Diactyl?

 

[JABBY]

DA = Diactyl?

I was curious about this as well.

 

[Snisup]

DA = Diactyl?

Diacetyl Aldehyde.

 

[golfduke]

Diacetyl, yes. Sorry, I was trying to rush through.

 

[Curtis2010]

Thanks much for doing this. I also use US-05 for some brews and keep it banked.

Interesting independent of US-05 too because you can see the importance of temp control and the diff small temp differences make.

 

[jbnla]

Subscribed

 

[g-star]

Diacetyl Aldehyde.

Diacetyl is the common name for 2,4-butanedione, which is a ketone.

An aldehyde is an alltogether different type of organic molecule.

 

[davekippen]

I love these experiments!!

 

[IPA-Hole]

I love these experiments!!

Especially ones you can drink!!!

 

[JABBY]

Diacetyl is the common name for 2,4-butanedione, which is a ketone.

An aldehyde is an alltogether different type of organic molecule.

And how would one try to detect these?

 

[dirtybasementbrew]

And how would one try to detect these?

Try googling "professor beer" he has a great way to learn how to detect the presence of DA. Its a very good article. Cheers

 

[golfduke]

And how would one try to detect these?

I'd also recommend reading 'yeast' by Chris white and jamil. They break down esters, phenols, diacetyl, and other off favors very well.

 

[JimRausch]

Missed the 1st couple days of this. Great work, so far !

 

[Inkleg]

Subbed. Thanks for doing the leg work and posting the results.

 

[jmm635]

Good timing! I'm brewing an IPA with US-05 this weekend! Thanks!

 

[coredumpster]

Interesting. I'm starting to play with controlling my ferm temps better than "mostly between 60-70F", and also use US-05 for most of my IPA/APA styles.

 

[Accidic]

Very nice.

 

[brewman243]

Subbed, its my favorite go-to dry yeast too. Thanks

 

[CharlosCarlies]

Looking forward to more results. Thanks for doing this op!

 

[heavyfeet]

Great experiment. I'm a Notty user but for no good reason other than that's what I've gotten used to. Been thinking of giving US-05 a shot in a light blonde this summer. Subscribed!

 

[BadDeacon]

I am interested in this because all I have to temp control is sinking the fermenter in a washtub in the laundry room and changing the water twice a day. I can usually keep it down to 68. It's hard to keep it lower. I want to get a good ferment chamber but am having trouble finding the funds and room.

I started out using 05 but recently started using white labs yeast and am not convinced that I like them better. If 05 can do the job at a higher temp then I prefer that.

I live in south MS and the climate is much warmer than what others have.

 

[peterj]

I am interested in this because all I have to temp control is sinking the fermenter in a washtub in the laundry room and changing the water twice a day. I can usually keep it down to 68. It's hard to keep it lower. I want to get a good ferment chamber but am having trouble finding the funds and room.

I started out using 05 but recently started using white labs yeast and am not convinced that I like them better. If 05 can do the job at a higher temp then I prefer that.

I live in south MS and the climate is much warmer than what others have.

Instead of changing the water twice a day, you could freeze some water bottles and rotate them in once or twice a day to keep the water temperature down. You would save a bunch of water and you'll probably be able to keep it below 68F.

 

[golfduke]

All of the beers are now at 1.008. It took longer for the 60 degree sample to get there, but it did reach it.

No tastings, but the 68 sample has cleared really well, while the 60 and 64 are still very hazy.

No off smells or anything.