You definitely can't do this with all dolls, but I know the quality of my dolls, so I did put this little one in the washer. I would not, however, do this with a doll that has natural fiber lock wigs of any kind. I also would hesitate doing this with a doll that has a needle felted sculpted face. The rest of the body would come out just fine, but I just don't know how hair of face would fare.
you can see how the coffee staines are still a little visible around the knees, but you know how difficult coffee stains are ;)