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Old 02-02-2010, 01:50 PM   #21
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Originally Posted by AZ_IPA View Post
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Great video Bobby. I knew you were working on it, but don't think I had seen it until now.

Maybe add as a link in your sig so it can be referenced more easily?
That's a pretty old video and I'm not 100% confident in the experiment. Yes, I still contend that "proper" re hydration starts you off with the most viable yeast cells. Even if dry pitching "has always worked fine", it's silly to knowingly kill a good portion of the colony.
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Old 02-02-2010, 02:25 PM   #22
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I'm still a new brewer, but I've gotten full attenuation from just pitching dry packets straight into the fermentor without re-hydrating first, so far. The beers I've made have tasted great, so I probably won't bother changing what works.

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Old 02-02-2010, 02:33 PM   #23
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It works until it doesn't. Que the "high FG, what happened" thread.

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Old 02-02-2010, 02:37 PM   #24
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Yeah, I'm talking about lower gravity beers. I'd never try pitching a single dry packet into a high gravity beer.

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Old 02-02-2010, 03:34 PM   #25
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Great video Bobby.

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Old 02-07-2014, 01:11 PM   #26
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Quick question on US05. I tried to watch Bobby's video but it's been blocked by youtube in the US because it contains copy written content. So I completed my second batch of all grain beer. For the first batch, I had several issues pre-fermentation and ended up with a fairly low OG, but I pitched one pack of US05 dry around 70F and the fermentation was extreme. I added a blowoff tube about 2 days in. For the second batch my efficiency was better and my OG was 1.056, I chilled the wort down to about 65 before pitching US05 dry. Afterpitching, the temp of my conical dropped to about 63 in the first 24 hours (which was still in the acceptable fermentation temp range of US05). Fermentation was visually active for about 3 days but not anywhere near what I visually saw with the first batch.

I just read on the US05 pack not to pitch dry below 68F. What happens if you pitch too low? Does fermentation take longer or do cells die at the beginning and you just don't get much fermentation activity at all resulting in a higher FG? If the latter, is the beer trashed at that point or can you heat the beer back to 68 and re-pitch another pack to finish fermentation?

Or is what I am experiencing normal (and the first batch was overly aggressive because of the warmer temp and lower OG)?

Thanks for the help...

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