Re: prepping hemp, can I air dry?
I boiled our baby kicks and then did one extra wash. Not sure how i prepped the gCloth. Def use detergent with both. I would say 2 times or so is probably enough to get the majority of the oils out, but may not be super absorbent.
If you are already washing diapers. After one or two prep just wash them with the dirty diapers. If you are pre baby, just save them out and wash them with the towel load every wash day until prepped.