Originally Posted by
Bree123
. . . The quilt shop lady suggested only washing the bright red Kona solid. . . .
!
I think that particular quilt shop lady was full of a LOT of only partially digested baked beans!
Do as the others have suggested. Decent fabric when gently washed should look as good after the first few washings as when it's new.
If you prefer a flatter look to your finished quilts, wash the battings (if washable when unquilted) before using them, too.