Raspberry IPA Colour Issue

[Eitreb]

Evening all,

This is my first post here (I've been brewing all grain for 2 years) so if I'm posting in the wrong place sorry. Recently I brewed a raspberry ipa and was really pleased with the colour (image hopefully attached with 2 glasses). Since transferring it to keg the colour has gone much pinker and murkier (image with one glass), not what I was expecting. The raspberries had all been frozen, everything cleaned and sanitised as I would normally. Anyone got any ideas what may have caused this?

 

[Upthewazzu]

Just a WAG...oxidation.

BTW, those first pours are beautiful!

 

[probablynotnick]

How long had it been in the keg when you took that last picture? My first guess would be the yeast back in suspension...

+1 Those first pours look incredible!

 

[Eitreb]

I'd dumped yeast through the conical and cold crashed to 2 degrees C for a week.

Thanks both for the kudos on the initial colour!!

 

[Easycreeper]

What temperatures are the respective pours? I've had beers that are gorgeous at room temp and not so much at serving temps. Chill haze is the culprit there and gelatin fining helps considerably. Just another guess though.