Just been steaming some carrot for DS, was busy washing up. Had checked and pan looked like it had water in but mustn't have been enough.
When I realised bottom of pan was black 
Carrot not discoloured and tastes ok so have puréed it but not sure if still ok to give to DS. Carrot was never in contact with pan and pan is a silver one so don't think it has the Teflon coating like the black ones.
Can I still give the carrot to DS?
(And now my house stinks of burnt pan!!)