Wow, lesson learnt.

[chutsk10]

First I turn mine inside out and wash them by hand under warm water then soak them in Hydrogen Peroxide for a day. Then they go in the washing machine on high temperature, no soap. I also run a quick rinse cycle on the empty washing machine before putting the filter socks in.

I read somewhere that Hydrogen Peroxide is a more safe method than bleach. Not sure if it's true or not but it seams to get the job done.