I smacked a Wyeast Danish Lager yeast last week and couldn't brew last week, not to mention the pack did not swell up until this week. I was planning on making a starter in the next few days and brewing on Sunday, but will not be able to do this now. My question is this:
-Now that the pack is smacked and has been sitting at room-temp for over a week, is this still good to use at a later date?
-How do I now preserve this for a later date; let's say I want to brew next weekend?
Thanks for any advice.

