One Year Old Yeast

[arog3000]

I had a package of Wyeast that was exactly one year old. Manufactured in June 14th 2011. I made a one liter starter with it on Thursday morning for a 3 gallon batch I want to make. It appears OK but it does not have the dense white cake on the bottom. When I shake it the airlock does get moving still. I normally like to wait till the airlock doesn't move so I know the yeast has eating all the sugar. I have attached a picture. Should I wait a few more days, increase the starter, or brew today with the yeast I have. The beer I am making should be about 1.058 SG. Cheers!!

 

[Jaybird]

I have done batches with real old yeast. I have used a WLP051 that was well over a year old as an experiment. Without a starter, I must add. Started fermenting within 24 hours and finished where it should have... Add loads of O2 to give them a fighting chance, but other than that, I say brew on my friend!
Cheers
Jay

 

[arog3000]

I have done batches with real old yeast. I have used a WLP051 that was well over a year old as an experiment. Without a starter, I must add. Started fermenting within 24 hours and finished where it should have... Add loads of O2 to give them a fighting chance, but other than that, I say brew on my friend!
Cheers
Jay

Thanks Man!! I just shook it again and it is really going now so I am going to wait till tomorrow and then brew.

 

[NordeastBrewer77]

If you wanna give them some help, take the airlock off the starter and replace it with sanitized foil. You want those yeast to be able to breathe in a starter.