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General Category => Yeast and Fermentation => Topic started by: treaves on September 23, 2010, 01:44:39 PM

Title: Smack pack did not inflate
Post by: treaves on September 23, 2010, 01:44:39 PM
The yeast I plan to brew with this weekend was well past the Best Use date, but it is what the store had.  I smacked it last night, and there is no real swelling.  I plan on putting it into a starter tonight, but was wondering if people have succeeded under such circumstances?  Is there still possibly enough viable yeast to take off in a starter?

And as I use a stir plate and foam stopper for my starters, I won't see bubbling;  once settled, how many mm of yeast typically collect in the bottom of a 2000ml flask?

Thanks.
Title: Re: Smack pack did not inflate
Post by: phillamb168 on September 23, 2010, 01:55:43 PM
I had a pre-smacked smack pack delivered to me a few weeks ago; I stuck it in the fridge and it deflated quite a bit, so I was nervous about pitching it. However, after a day of lag time, it's fermenting nicely. The wee yeasties are a resilient lot; I think you'll be ok.
Title: Re: Smack pack did not inflate
Post by: phillamb168 on September 23, 2010, 01:57:25 PM
Also note that, at least for my smack pack, there are two things which one must smack: The yeast pack, and the food pack. If you didn't smack the right pack, give it another crack.
</doctorseuss>
Title: Re: Smack pack did not inflate
Post by: ryang on September 23, 2010, 01:58:18 PM
yeah I had the same thing happen with some belgian wyeast.  I made a starter with it but pitched a white labs tube as well.  Fermented nicely, although I can't say whether or not the yeast from the smack pack did much.
Title: Re: Smack pack did not inflate
Post by: Hokerer on September 23, 2010, 02:14:01 PM
You should be fine since you're making a starter.  There's almost sure to be some viable yeasties in there.
Title: Re: Smack pack did not inflate
Post by: bluesman on September 23, 2010, 06:09:37 PM
I think a starter will do the trick.  You'd have to do something awfully wrong to completely kill a smack pack.  Those yeasties are alot tougher than you think.
Title: Re: Smack pack did not inflate
Post by: alikocho on September 23, 2010, 06:12:03 PM
I pitched a non-inflated pack a few weeks back. I could hear it fizzing, but it hardly swelled. Hoped I was having a long lag, but it picked up an infection.  Irritated, but I guess one lives and learns to make a starter.
Title: Re: Smack pack did not inflate
Post by: denny on September 24, 2010, 03:25:52 PM
The yeast I plan to brew with this weekend was well past the Best Use date, but it is what the store had.  I smacked it last night, and there is no real swelling.

The date is the manufacture date, not the use by date.  The ROT is to expect it to take one day for every month past manufacture for it to swell.
Title: Re: Smack pack did not inflate
Post by: treaves on September 24, 2010, 05:13:24 PM
It's nice to know those little critters are so hardy!