Electric Brewing Supply 30A BCS Giveaway!


Home Brew Forums > Home Brewing Community > General Chit Chat > How long does liquid yeast stay viable for use?
Reply
 
LinkBack Thread Tools
Old 11-03-2012, 07:27 PM   #1
Phipcice
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2012
Location: Sheboygan, Wisconsin
Posts: 11
Default How long does liquid yeast stay viable for use?

Have vial of White Labs Belgian liquid ale yeast WLP550, been in refrig since delivered Jun-06-12, "best before date" reads Sep-04-12. Is this date "bible"? I'd like to brew tomorrow but if this yeast shouldn't be used I'm SOL cuz brew store isn't open til Monday. Any input would be greatly appreciated...

__________________
Phipcice is offline
 
Reply With Quote Quick reply to this message
Old 11-03-2012, 07:36 PM   #2
kh54s10
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2011
Location: Tiverton, Rhode Island
Posts: 6,871
Liked 628 Times on 535 Posts
Likes Given: 168

Default

The actual manufacturing date is 4 months prior to the best by date. If you are making a 5 gallon batch you should have already made a starter. The older the yeast the larger it needs to be.

If it were me I would make a starter and put off brew day until it is ready.

Mrmalty.com and yeastcalc.com are good sources of information on starters and have calculators to determine how much yeast you will need.

__________________
kh54s10 is offline
 
Reply With Quote Quick reply to this message
Old 11-03-2012, 07:43 PM   #3
Golddiggie
HBT_SUPPORTER.png
Feedback Score: 1 reviews
 
Golddiggie's Avatar
Recipes 
 
Join Date: Dec 2010
Location: Between here and there, and everywhere
Posts: 12,058
Liked 478 Times on 420 Posts
Likes Given: 266

Default

I had some White Labs vials in the fridge, that was dated for use by March 2012, that I used this past weekend. I made three starter steps to get the cell count where I needed. After pitching the slurry, I had full activity in under 12 hours (going through the blowoff assembly)...

With a starter, or a couple of starter steps, you can use rather old yeast.

__________________
Hopping Tango Brewery

跟猴子比丟屎 ・ Gun HOE-tze bee DIO-se

On Tap: Caramel Ale, Mocha Porter II, MO SMaSH IPA
Waiting/Carbonating: 12.5% Wee Honey II, 8.9% Old Ale, English Brown Ale, Lickah ESB, Mocha Porter II
Fermenting
K1:
K2: Epic mead
K3: TripSix
On Deck: Caramel Ale
Aging:mead
Mead [bottled]:Oaked Wildflower Traditional, Mocha Madness, Blackberry Melomel, maple wine
Golddiggie is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
how long will a starter stay viable? OHIOSTEVE Beginners Beer Brewing Forum 3 01-18-2011 01:25 AM
How long will a yeast starter stay viable? southpawbrew Fermentation & Yeast 4 02-16-2010 12:45 AM
How long will 1step stay viable SkyDog Beginners Beer Brewing Forum 2 02-16-2008 05:29 PM
How long does slurry stay viable? Bobby_M General Techniques 8 09-08-2007 01:49 AM
How long does One-Step stay viable? Focus Equipment/Sanitation 7 01-17-2007 05:58 PM