What type of infection is this? (with picture)

Any ideas?

The beer was a batch of denny's vanilla bourbon porter. I'm moving forward with it, put in in the glass carboy with the vanilla beans. It tasted sour, not good, not terribly bad. Still lots of coffee and other flavors in there, just a sour tint to it.

It is also my first officially infected batch of beer. Wish it wasn't this one, but i've been on a winning streak for a long time, knew this time was coming eventually.

Pretty! So this became infected in primary, before the vanilla bean addition? Had you added coffee at that point (or was the "coffee" you referenced from the dark malts)?

Yea its a great picture, wish it wasn't mine though haha. Everything was from the malt, nothing else was added. Thats a shot of the primary. It was in there for 5 weeks while on vacation. I added the vanilla after the transfer.

Looks like lacto. Could be other stuff in there, but filmy with bubbles is classic lacto. Don't dump it till you know how it tastes once activity stops!

I'm no expert, but if I had to guess, I'd say you have the dreaded Blue Cheese-Vanilla Pudding-Apple Crisp infection.