Baby Food Strainer I Have Some Questions About Making My Own Baby Food?

I have some questions about making my own baby food? - baby food strainer

Should I do anything vapor, such as apples and bananas? Why can not they really big? It seems strangely muted fruit for me. which are also organic origin, is that correct?

I know how, but I wonder if the steam?
and do things such as pumpkin) (after steaming Should I keep a filter or anything to the seeds?