When we picked up Scotty we were sent home with myriad foodstuffs and a sprouting kit including a plastic sprouting jar (handy), sprouting mix and Grapefruit Seed Extract. They use the GSE as a disinfecting agent in the sprouting process. It goes into the soak water and then is thoroughly rinsed out prior to the sprouting. Scotty seems quite fond of his sprouts, although Scooter shows no sign of developing a taste for them. Is GSE something anyone else out there has used? I have found a few references to its use with birds on various websites.
... and at least one website completely debunks it. (Wellvet.com)