UPDATE -
I did some research and one possible cause for the awful smell coming out of the grass container is this: when I water the cat grass I tend to put a enough water so that the container stands in water for a few days. This could cause the roots to rot hence a breeding ground for molds...
Yes. I "believe" cat grass can be quite dangerous when contaminated. Here is my experience.
I have 2 cats. One eats the grass the other just nuzzles it. I used to grow my own grass than I started to buy it. The male cat who eats the grass used to vomit a little bit and I believe the grass...