I use gelatin religiously. Knox unflavored, and Walmart unflavored.
When the package of gelatin is opened, there is a subtle, yet very distinct odor. Similar to a livestock barn. My grandparents had a farm, so I can recognize this in an instant!
The odor is present in the liquid after the gelatin is dissolved. And it is not a pleasant aroma.
I think that the off flavor shows itself in the beer. It is not an "in your face" off flavor, but it is there. The taste I get is a hint of Dawn Dish Soap. And it is in nearly every beer brewed here. No, soap never touches any of the brewing equipment!
Yes, I need to do an A-B comparison with two batches. One with gelatin, one without.
Have any of you who use gelatin experienced this?