I get all of them confused, too.
My method is to wash/soak the fabric until the water runs clear - or clear "enough"
My reason is that I am reasonably sure that the quilt will need to be washed at some time. I am also reasonably sure that the recipient will not be aware of all these techniques - about the best I hope for is "wash in warm or cold water - on a gentle cycle - and avoiding bleach or bleach-like substances"