The Hario Woodneck brewer uses cloth filters that are not meant to last forever but I am looking to increase their usable age. As weeks pass, the flow rate of water through the filter noticeably slows down. In a brand new filter it seems almost constant from full to empty, but after a month or so the last bit takes ages to drain. What should I be doing to keep them 'alive' longer?

I am using the ones in the image if it matters. These are inserted to the hoop provided with the Woodneck.

enter image description here

Before first use I soak the filter in boiling water for a few minutes as instructed. After each use I rinse it with hot water. Between uses I store the filter in a ziplock bag in the freezer.

1 Answer 1


Try putting a glob of coconut oil on the filter and then sprinkle a little baking soda and salt on too. Scrub with a stiff plastic toothbrush/nailbrush followed by a warm vinegar/lemon juice dosing, a final brushing, then a hot water rinse. This works well for ceramic mug coffee stains too :-)

  • What does the coconut oil do, exactly?
    – Stephie
    Oct 8, 2017 at 6:06
  • A portion of the coffee stain is oil based. Coconut oil will help dissolve that. In addition, coconut oil is naturally antibacterial and antiviral which is a good thing when cleaning something like this I think. Oct 10, 2017 at 16:37

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.