Hand rinse briefly to avoid smells prior to washing.Breastfed newborn poo is water-soluble and does not require rinsing.
Store in an open, non-porous basket or bucket with high air flow (a small laundry basket is a great choice)
Pre-wash nappies daily in a warm short cycle. Use half the amount of detergent recommended for a normal load. This step is very important for getting rid of excess poo and wee prior to cleaning your nappies in the main wash.
When you have enough nappies to fill your machine (2/3 full), run a long hot wash (40-60 degrees Celsius) using the amount of detergent recommended for heavy soiling.