In my enthusiasm to find Wyeast 3068 at my LHBS, I didn't look at the manufacture date on the pack. Last night when I was about to start my Apfelwein, I looked and found that the pack was about 2 years old. I smacked the pack and have had no change at all in almost 24 hrs. (i.e., no swelling whatsoever.)
I'm pretty sure my LHBS will order another one for me or make it good in some way to me. So, I'm not too worried about that.
I read an article a couple weeks ago about a professor that made a home brew with 8 million year old yeast he harvested out of a piece of amber.
1) Is the yeast completely dead, or is there a way to get a starter going from this old pack.
2) Has anyone ever tried reviving an old pack like this before? If so, please tell me your successful actions. Or let me know if you weren't successful.