The basic method is straightforward. A clean plastic bottle is placed inside the washing machine together with the clothes, with the cap securely tightened. As the washing machine drum turns, the bottle moves around with the laundry. Supporters of the method believe that this extra movement can help prevent some garments from becoming tightly wrapped together during the wash. When clothing remains less tangled, water and detergent may have an easier time moving between individual items.
Some people also use the trick because
