Pretreat stains by applying stain solution
Turn your item inside out and wash with the same or similar colours.
The safest method is to hand wash the items. First add a wool & cashmere shampoo to a sink of cool water. Mix it up a bit and submerge your items. Make sure your soap is evenly distributed and soak up for 30 minutes. Run cool water through your items until the water is no longer soapy. Then press the water out between your hands or against the sink. It's important you don't wring it.
If you wish to wash in a machine, use mesh washing bags. But make sure the temperature is cold and the spin is on low.
Lay flat in a natural shape, avoid direct sunlight and heat sources.