In order to keep sweaters soft when washing them, use very little detergent, use a low water temperature, never wring out or stretch the garment and wash one sweater at a time. The timing varies depending on whether you machine or hand-wash the item.Continue Reading
Pretreat stains before washing the sweater. This helps to remove the stain without scrubbing or over-washing the sweater, which can misshape or roughen the fabric.
Whether you are hand- or machine-washing the sweater, use the lowest temperature possible.
Add detergent to the water. Use a very small amount, and make sure that the detergent is gentle. The more detergent you use, the harder it is to get out of the sweater. Soap that is not rinsed completely from the garment can cause that garment to feel stiff.
Either put the washing machine into a gentle cycle or agitate the soapy water by hand. Never scrub or wring the sweater, as this can stretch it out. Only wash one sweater at a time.
Place the sweater in clean water to rinse it.
Place the sweater on a towel. Roll the sweater in the towel to remove excess water. Lay the sweater flat to air dry.