Fermented Feed question

[aoxa]

If you touch it, bubbles will rise. That's how I can tell. I don't have much of a sense of smell, so bubbles is a good indicator of fermentation happening. 

Oh good i can do that! .Yes i smell but vinegary sort of ..sometimes ....not sure about the smell either 

Bubbles aren't that noticeable. I find that the top layer feels like it's sitting on fluff.. It's really hard to explain.. If you stir it, you will see some bubbles.