Caribou Slobber Extract Kit (little sour)

[gishua]

Hey guys,
Always a great help here. I just brewed a Caribou Slobber and this is my scenario and let me know if I need to wait a bit more for better taste.

Fermented in Primary for 2 weeks 2 days.
Fermented around 75-79F
Got the gravity I wanted of 1.015
Transferred directly to keg and put it on C02 (9psi)
Waited 1 week 3 days - it's fully carbed now
So now almost 4 weeks into it - it tastes a little sour/bitter?

I know i sanitized everything thoroughly and cleaned the entire keg system.

Could this be due to the sediment at the bottom of the keg on the first few pours? Should I pour a pitcher out?

Any help appreciated. What time limit should I know to ditch it and start another.

I can still smell like a caramel / sweet smell, but tastes sour or bitter. Not sure how to tell the difference.

thanks in advance
Josh

 

[WayFrae]

I don't know if the sediment would taste sour or not but I would pull a few pints until it is pouring clear to see if it changes it. (FWIW, I don't have a kegging system )