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I've heard that coffee grounds are a good "green"(nitrogen rich) to put in your compost, but I was wondering if I could throw the filter in there as well? They are the standard "accordion side" white ones.

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6 Answers 6

up vote 13 down vote accepted

The paper ones? Sure - they're just like blotting paper and break down quickly. The usual things that can make some papers questionable should not be present (plastic coatings, metal and/or oil based inks) - or if they are present, you need to quickly change your filter brand!

What I would probably do if possible, is to try and tear the paper a little so that it all mixes up more easily and quickly.

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I also put paper towels in if they were used for fruit-veg only: for example when I rub the fuzz off a peach with a paper towel, I compost the paper towel. –  Kate Gregory Dec 31 '11 at 16:21
    
Same here if it is convenient. –  winwaed Dec 31 '11 at 17:04

Yes, you can add coffee grounds with their filters to your compost pile. Because they are wet, they decompose fairly quickly. The filters may dry out you if leave them on top of the pile in dry weather. Keep it inside the pile and keep it moist. Also, worms compost the grounds and filters very fast. I have a five tray worm factory and I just drop the whole filter with the grounds in and close the lid, and my army of five thousand redworms eat it in less than a week. I found filters to be easy to compost in almost any composter. If you have a two week ComposTumbler you will want to shred them before you add them, to keep it even.

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I agree that coffee filters do not break down quickly. However, I simply move any uncomposted material such as the coffee filters to a new compost pile, and let the composting complete there. I always screen the compost to catch any twigs, etc., that did not break down sufficiently.

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Absolutely ok; we have incorporated coffee grounds into our plant food and many of those grounds included the paper filter. You can go to our site if you are curious, there is a lab analysis on the site: www.beantogreen.com

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My brown coffee filters breakdown quickly. The white chlorinated coffee filters take longer to break down.

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Paper coffee filters do not break down quickly at all. I've tried different brands: all natural, brown etc. Those of you say they do have maybe never actually watched a coffee filter in a compost pile.

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Sounds like you filters are drying out or you are not giving them long enough. –  winwaed Jun 13 at 14:34

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