so i can roast my egg shells to give back to my girls??
what temperature and for how long?
is it just on a baking tray?
how crushed up should they be to give them back?
how do i store my empty egg shells before i have enough to roast them? do they go smelly if i just leave them to one side and how long do they keep for after ive roasted them?
anything else i need to know about it?
thankyou very much
kat