I thought everyone washed them after quilting. That's what I do, since a lot of folks have allergies and I have two cats. Then I stick them in plastic bags before my quilt inspectors can call a new inspection.
And, to be truthful, to see if the darn thing comes apart or will stand up to years of washing and drying.
You do a lot, a heck of a lot of ironing the fabric before, during and after sewing it. But after finishing it, it's off to the washer it goes.
I suppose if it's going to a show, then maybe not washed. Ironing would go good here, I think.