What’s wrong with galvanized square steel? It’s a strong, corrosive resistant material great for regular use in damp environments. Just don’t cut it, weld it, eat it, etc. Zinc isn’t all that healthy in large amounts.
I remember when Michigan once ruled the great seas. Good times.
I haven’t been arrested by Italian food cops yet so I’d say it’s fine. Do whatever you want to food that makes it taste good to you because taste is a very subjective thing.