Pitching lager on top on 4 day old cake

[SteveHeff]

I have a yeast cake from a lager I fermented and transferred 4 days ago. I've been holding it at 40F still in the sanitized bucket I fermented in. How long can I hold this before I should consider dumping? Looking to brew tonight or tomorrow. Thanks in advance.

 

[fourfarthing]

If you've been holding at 40 and are sure its sanitized I would say pitch away. I have kept washed yeast for much longer than that and had fine results.

 

[Dland]

I have pitched on one week old lager cake in sealed temp controlled fermentor several times, never had a problem.

 

[waldoar15]

I'd also go for it if it was sealed, kept cold with a little beer on top.