Sam21 wrote: Every week or so, usually on the weekends, I will soak both filters in a hot water/JoeGlo bath for 30-60 minutes, rinse them thoroughly, and put them back in the fridge. I've been using the same Woodneck cloth for 4 months now using this routine. The filters never return to their original color fully, but they impart no off flavors to the brew.
Try using Oxyclean Free instead of the JoeGlo. I've found it does a much better job of cleaning the filters. I store mine dry in a cupboard after the O/F cleaning then I use each filter once & reclean.