old yeast

Grains, malts, hops, yeast, water and other ingredients used to brew. Recipe reviews and suggestions.

Moderator: slothrob

old yeast

Postby spgriffin » Fri Jun 11, 2010 7:22 am

I have a smack pack dated August 2009 I found in my fridge, can I still use it? If so how many days before I brew should I smack it?
Keg 1: Rye stout
Keg 2: Irish honey red
Pale Ale
Pale Ale
Posts: 57
Joined: Wed Mar 18, 2009 8:49 am
Location: Chicago

old smack pack

Postby slothrob » Fri Jun 11, 2010 4:46 pm

That's getting up there, but there should be viable yeast still.
The rule-of-thumb is to allow 1 day for every month from the date on the pack, so maybe as much as 10 days! If the pack manages to inflate, I'd plan on making a starter before using it, however. Otherwise you're guaranteed to underpitch.
BTP v2.0.* Windows XP
User avatar
Posts: 1834
Joined: Mon Apr 10, 2006 1:36 pm
Location: Greater Boston

Postby jawbox » Fri Jun 11, 2010 7:51 pm

absolutely positively make a starter before using this one. Like sloth said you're guaranteed to under-pitch
iMac 27", 3.4 GHz Intel Core i5, 8GB Ram, Mac OSX 10.12.6
iPhone 7+
iPad Pro 10.5
I like macs ;)
User avatar
Imperial Stout
Imperial Stout
Posts: 529
Joined: Fri Oct 27, 2006 1:43 pm
Location: W. Dundee

Return to Ingredients, Kits & Recipes

Who is online

Users browsing this forum: No registered users and 1 guest