I rescued a Sun Conure and the owner gave me her Wrought Iron Cage. The cage is 10 years old and I don't think it was ever deep cleaned. I started cleaning it with Vinegar Water then tried straight vinegar but end up resorting to using Simple Green. Simple Green claims to be non-toxic but I don't trust that with my parrots. How should I insure the Simple Green is cleaned off the cage?

P.S. While the Conure is in quarantine, she's living in another cage.

Thanks!