Cold Crash Trub Photo. Is this normal?

[InsertMoreHops]

**sorry, repost. Wanted to fine tune the title so it wouldn't be overlooked and previous edit didn't show. Photo update below**

Hi All,

I know there are 2541582 threads pertaining to cold crashing, but I wanted to post with my specific situation.

I have a 1 gallon GLASS carboy (primary fermentor) cold crashing in my fridge with the original S shaped airlock I used throughout the fermentation. The airlock has sanitizer in it and it has been fermenting for about 3 weeks (outside the fridge).

I am aware of the "vacuum effect" that takes place with cold crashing and that I will introduce some outside (fridge) air into the beer. Since I have the S shaped airlock, the sanitized liquid was not sucked into my beer and still acting as a barrier between the inside and outside. Its only been crashing overnight so far and i planned to crash for about 48 hours.

My question is, how paranoid should I be about introducing the relatively small amount of air into the beer in this small time frame? I know introducing ANY air should be avoided as much as possible, but it seems like the consensus is all over the place.

Any feedback is appreciated. Thanks!

****UPDATE****

Just took a photo of the trub. Does this look normal? The additional white-ish layer just recently appeared over the dry hop layer over the trub and there are white floaters in the beer.

 

[passedpawn]

RELAX.

It's all fine. Looks like you did a good job clearing your beer (IPA?) Don't worry about the small amount of air that went back in.

Bottle/keg, enjoy.

 

[InsertMoreHops]

RELAX.

It's all fine. Looks like you did a good job clearing your beer (IPA?) Don't worry about the small amount of air that went back in.

Bottle/keg, enjoy.

Thank you for the reassurance. You nailed it, it's an IPA

Do you have any idea what would cause this additional white-ish top layer to appear "out of nowhere" versus gradually building up? I also noticed new suspended white floaters in the solution. Those 2 together made me thiink it was infected.

Thanks for chiming in.

 

[unionrdr]

Looks like the last bit of yeast settling out. Side-on, it looks like the Jovian cloud tops...

 

[BigFloyd]

Looks like the last bit of yeast settling out. Side-on, it looks like the Jovian cloud tops...

Yep. That's why you cold crash, to get that excess suspended yeast to settle out.

No worries about that little bit of air coming in. It won't harm the beer.

 

[passedpawn]

Thank you for the reassurance. You nailed it, it's an IPA

Do you have any idea what would cause this additional white-ish top layer to appear "out of nowhere" versus gradually building up? I also noticed new suspended white floaters in the solution. Those 2 together made me thiink it was infected.

Thanks for chiming in.

Yea, probably yeast. I'd guess in another day that soft yeast layer will be flat on the bottom.