I don't know of the hard fast rule, but I'm interested, so I'm also bumping this up...
When I got my liners, I just kept them in the laundry as I folded... That is to say that I did dry them, then instead of putting them in the basket to come back upstairs, I just tossed them back into the washer to go with whatever was next.
I probably washed them 3-5 times, but I have to say -- I've read 8 other places, and I think they are now absorbing better than they did at first.
Hopefully others will be able to give you more sound advice.
When I got my liners, I just kept them in the laundry as I folded... That is to say that I did dry them, then instead of putting them in the basket to come back upstairs, I just tossed them back into the washer to go with whatever was next.
I probably washed them 3-5 times, but I have to say -- I've read 8 other places, and I think they are now absorbing better than they did at first.
Hopefully others will be able to give you more sound advice.