So, I'm sure you are familiar with the insanity that is blueberry poop. LO LOOOOOVES blueberries and it makes her poo black, chalky, and seedy. We have Charlie Banana pocket diapers and I usually just lay the microfiber insert on top of the cover. I usually wash one cycle on cold with powder detergent, one hot cycle with no soap, and then a hot dryer. This usually takes care of whatever marks are on the insert, at least well enough, but the blueberry is persistent. I wonder if anyone else has any blue poo stain fighting wisdom to share. Thanks!