Ziploc and Yeast?

[BendBrewer]

Woke up this morning to dead fermenters after pitching a 1.061 10 gallon batch of IPA yesterday. I know the "Fermentation can take 72 hours" spiel, but not in my house. I stick to brewing what I know, I use the same yeast and pure oxygen. I haven't had a batch of beer not take off in under 4 hours in 6 months. After 12 hours, my beers are exploding.

Not today baby, not today. Something is wrong.

The only difference that I can think of is when I purchased the yeast a couple of weeks ago, I tossed the 2 dry packs of US - 05 into a 1/2 pound ziploc bag of hops that I also purchased and sealed it up. That weekend I ended up pitching onto yeast cakes and I didn't use the yeast. It sat it the ziploc with the hops inside the keezer for 2 weeks.

Do those packets need to breathe or something? Could I have suffocated dry yeast?

 

[kpr121]

How do you know there is no fermentation happening? Did you check gravity?

 

[BendBrewer]

I peaked inside. It's dead. I know my beer. It's always the same. This morning? Nothing. Normally 15 hours into it, it's decide on blow tube or not time.

 

[ACbrewer]

Do those packets need to breathe or something? Could I have suffocated dry yeast?

Considering that they are shipped in air tight bags to beginwith? I don't think so. Same applies to bread yeast. Those packets are sealed up.

 

[BendBrewer]

Considering that they are shipped in air tight bags to beginwith? I don't think so. Same applies to bread yeast. Those packets are sealed up.

Yeah, that's what I would have thought. Oh well, not allowed to worry about it. If I get home and it looks the same I'll just pitch some fresh yeast and forget about it. It's just odd and I don't like oddities when brewing something so routine.

 

[azscoob]

I know the "Fermentation can take 72 hours" spiel

I have had some lazy packets before, possibly from mishandling during shipping or another factor you had no control over, I would still give it the time to take off.

 

[theredben]

+1 on improper handling between production and purchase. Sounds like a dead packet. Did you proof the yeast?

 

[jtakacs]

you seriously worried about suffocating an air tight package? i pitched two identical US-05s the other day (bought at same place, same time) one took off in 6 hours, one took off in 24... different beers, same gravity, one had wheat (the slow one) in it...

personally i wouldn't break a sweat until after 48 hours and even then, i'd probably just walk over to it and yell at it.