I have a couple questions:
1. What were the temps in the closet and kegerator?
2. Your beer was already at cold crashing temp. What do you think the upper temp cutoff of temp might be? In the Brulosophy documented quick lager method it says you can add gelatin at 50 degrees.
One trick I have done to eliminate sucking sanitizer back in during cold crashing is to sanitize a small water balloon or Nitrile/Rubber Glove and stick it (the balloon or middle finger) through the airlock hole in the carboy stopper or bucket lid. I then put the airlock back on to hold it in...
I know this has been up a few months, but here is my 2 cents worth.
I did something similar to the Video.
I took a Starsan'd nitrile painting glove and pushed the middle finger through the airlock hole in lid of my fermentation bucket. I then held it in place with the airlock. Any...