> A modern European washing machine uses 30-50 litres per wash, vs 75-100 for a modern American one.
Maybe we just have bigger washing machines? You need to control for washer capacity to make a fair comparison here. If you need to do twice as many loads of laundry because you can only fit half as much laundry in each load, you’ve gained nothing. And it’s not like having a bigger washing machine requires every load of laundry to use the full water capacity of the machine even if you only do small loads. On older machines you can set a dial for load size while newer ones have sensors for that.
Maybe we just have bigger washing machines? You need to control for washer capacity to make a fair comparison here. If you need to do twice as many loads of laundry because you can only fit half as much laundry in each load, you’ve gained nothing. And it’s not like having a bigger washing machine requires every load of laundry to use the full water capacity of the machine even if you only do small loads. On older machines you can set a dial for load size while newer ones have sensors for that.