How do I get yellow milk stains out of stored baby clothes

[wyebird]

Sorry if this has been discussed ad nauseum (a-hem) but does anyone have a tip for getting yellow stains out of baby clothes that have been stored?

I washed and put away No1 Son's clothes about two years ago and now I need them for No2 Son, they seem to have yellowed round the neck and shoulders, presumably where they had been burped on.

I use Ecover washing liquid, which obviously didn't kill off the burple properly as they weren't yellow when I stored them!

Any ideas gratefully received.

Don't think you'll get the stains out. MIL soaked stained bibs in Borax for days and the milk stains didn't come out

I got ds1's clothes out todY FOR DS2 AND HAVE exactly the same problem, but my white stuff has yellowed all over (but patchy). I'm going to try washing with ecover laundry bleach and then hang out on the line so the sun can do it's job like MarlaSinger suggested.

Thanks for the suggestions. I think I will try washing in a bio detergent (so the enzymes can eat the milk - is that how it works?!!) and then hang out for as long as poss.
Roll on sunshine, or No2 Son will have outgrown the clothes!

Yes, I think Bio + sunshine should do it?