composting in a metal bin? would you?

I've got a lidded metal bin at the bottom of the garden which is just a tad smaller than the grey/green council recycling bins. It's a leftover from the people who lived here before us so I don't know what it's made of exactly, but my guess is it's zink plated.

I was thinkin, could I use that to compost greenery (only leaves etc., my kitchen waste goes in the wormery). I'm gonna have an awful lot of lawn grass with some soil, could that go in there? There isn't gonna be much air i'm afraid, but I'm limited in my composting options because 1) I've got a nosy toddler, and 2) I'm not allowed to have anything ugly and messy.

I'm also a bit worried about it being zink, as zink will react with (and thereby leak into) anything acidic that comes into contact with it, but then again a bit of rotting grass shouldn't be acidic should it? Or would it?

 

Cool! :happydance: If I plant that fiver rather than compost it, would I have a fiver tree? Or at least a bush? PLEEAASE? I promise to feed and weed it!

 

it does have a bottom, yes, as it's just a standard bin. I doubt I'd have enough to fill it up, I'd be surprised if I have it half full so that sorts the problem of getting out the end product. The sludge problem is more to the point, as I don't see myself drilling holes through an inch-thick sheet of metal would it be ok if I just put something in the bottom to soak up the sludge? Like lots of cardboard maybe?