A local church just had a terrible fire and a quilt survived the fire but not the water and smoke. One of the members of the church is a quilt appraiser and restorer and the following is how she handled cleaning the quilt to remove the odor. They washed and rinsed the quilt several times, one after the other, in a bath tub. Then layed the wet quilt out in the sun on the grass until dry. Lay a plain white sheet on the grass first and another on top of the quilt. It no longer has an odor. It has something to do with the chlorofyll in the grass.