National Homebrew Club Ireland

Brewing Discussions => Yeast Board => Topic started by: Ciderhead on May 10, 2014, 09:54:59 pm

Title: Dried Yeast Shelf Life
Post by: Ciderhead on May 10, 2014, 09:54:59 pm
Further to a topic LE started earlier in the year on shelf life of  liquid Yeast, I am doing a couple of "lazy" beers for comps using 05 and the new BRY 97 at the moment and as I hadn't used dried yeasts bar 05 for a couple of years had to re-educate myself on what needs rehydrating and what doesn't and optimum conditions for pitching.
An interesting fact I came across from research from Fermentis is that dried yeast at room temp loses between 30 and 40% of its effectiveness v's fridge stored which loses only 4% over 12 months, so get it out from the back of the cupboard and hide behind the eggs ;)
Title: Re: Dried Yeast Shelf Life
Post by: Eoin on May 10, 2014, 10:03:28 pm
How long are they talking about for that amount of loss of viability?
Title: Re: Dried Yeast Shelf Life
Post by: Ciderhead on May 10, 2014, 10:08:15 pm
I knew there was something I forgot :)
Title: Re: Dried Yeast Shelf Life
Post by: Eoin on May 10, 2014, 10:09:39 pm
Wow only 4% in a year whodathunkit?
Title: Re: Dried Yeast Shelf Life
Post by: delzep on May 10, 2014, 10:10:26 pm
How do homebrew shops store them is important  :o
Title: Re: Dried Yeast Shelf Life
Post by: Ciderhead on May 10, 2014, 10:24:37 pm
Got BRY 97 going in 12 hours by rehydrating and oxygenating wort for 30 secs 1l/min.
Title: Re: Dried Yeast Shelf Life
Post by: Eoin on May 10, 2014, 10:33:46 pm
I think that disposable O2 setup will be my next upgrade.
Title: Re: Dried Yeast Shelf Life
Post by: Greg2013 on May 10, 2014, 11:43:55 pm
Quote from: Tube on May 10, 2014, 10:27:28 pm
Your experience isn't typical (google)! Ali Kocho gave me the sachet and told me it lagged 2 days for him, and it did for me too. Maybe the O2 is the difference.


Ali Kocho Williams from UK ?  :o :o :o
Title: Re: Dried Yeast Shelf Life
Post by: Greg2013 on May 11, 2014, 12:20:08 am
Quote from: Tube on May 10, 2014, 11:58:01 pm
The very one. He's on here too: http://www.nationalhomebrewclub.com/forum/index.php?action=profile;u=278


Small world, i know him from facebook brew pages  :o :o :o