I use BIZ..it used to come in powder only...Fill washer up with hot water put in BIZ, let t dissolve. Let water cool to cold. Put the quit in and soak it over nite. Using same water put in some Blue DAWN, maybe 1/4 cup..wash on gentle cycle...Take quilt out , if stains still on quilt repeat process . I have used this method for years with good results.
Do not dry quilt in dryer until all stains are gone. Heat sets the stains oin.