I've been growing Wheatgrass in stainless steel bowls for many years now. The problem is I can only plant one bowl a day, due to time and space. That provides me with 6 ounces of juice, on the average, everyday. I take it twice a day, and it has been 'working' fine so far.
Good Luck to all who want to try it too. I'll speak for Grassman in saying we're here to help, and who knows, we may even learn something too. We all have something to give......WY