I just made my first garbanzo bean based tempeh. I had only been doing soy and had a few failed mesquite experiments. This was super easy as far as tempeh making goes. I was careful to not over cooking the garbanzo beans and to dry them thoroughly before inoculation. I also stuck the temperature probe directly on below the tempeh as I wanted to hold a solid 90F and not add excessive heat as the fermentation creates it's own.