Dunking cut branches in clean water removes dust, dead insects and any residue left from earlier sprays, and the flower dries normally afterwards if airflow is decent. Growers who have never had a pest problem understandably see no reason for it. Post harvest handling steps are covered at https://queenfeminizedseeds.com (https://queenfeminizedseeds.com) in the drying guides. Outdoor plants collect far more debris than anything grown in a sealed tent.