Return to the Vermicomposting Forum | Post a Follow-Up

Coffee and cat litter

Posted by chrisgreaves (My Page) on
Tue, Oct 31, 06 at 9:29

I have begun an experiment with unscented clumping litter in a vertical tower vermicomposter.

I have two bustling coffee shops right across the street.

My mind turns to the use of coffee grounds as a kitty litter, and so I solicit opinions. It seems to me that cat faces & urine embedded in coffee grounds has to be better for the worms than clumping clay.

I'm not sure about the cat; paws could bec0ome dis-coloured?

The apartment would adopt a strong smell of coffee, I have no doubt.

Follow-Up Postings:

RE: Coffee and cat litter

Would you dry the coffee grounds for the cat's use? Cat litter tracked around the house is bad enough, not sure if coffee grounds would be an improvement! I commend you for your experiment. Are you using "used" cat litter, or fresh from the bag?

RE: Coffee and cat litter

Yeah, cat urine is the worst!!!

There's a product called 'yesterdays news' or something like that. It's made from old newpapers. Also, feline pine????

I personally DONT compost anything cat related. If it works, please let us know!!!

RE: Coffee and cat litter

Hi! Were you able to try out using coffee grounds as cat litter?

I was thinking the same thing since they are liquid and odor absorbent you can get them for free -- have 11 cats.

RE: Coffee and cat litter


swampboogiequeen (what a cute name) is right. I would NEVER compost cat faeces. For the simple reason that Toxoplasmosis is not a pretty disease!

But the concept of using coffee grounds as cat litter is appealing:
1) it smells better than cat urine!
2) it available for free (or at least very cheap)
3) it's already brown ;-)

1) cats may no like it
2) cats may track it through your house
3) cat's paws, carpets etc may discolor.

RE: Coffee and cat litter

I'm just gonna say it, You're trying to conserve too much. If you want to do that you might as well replace TP with leaves and use an outhouse. You could forget about a floor in your house and all utilities. I do respect you for trying to conserve but you need to find a balance. I vermicompost but I would use the coffee grounds from the coffee shops in the worm bin only you can be sure they are happy to dispose of their garbage for free. What I typically put in the bin is soil,a wood log, and whatever comes through the kitchen that isn't on the no list.

RE: Coffee and cat litter

I'll love to hear the result too. I have 2 indoor cats myself. My personal opinion, you'll have better success using "Yesterday News".

For people worry about "Toxoplasmosis", do indoor cats still gets toxoplasmosis? Also, wouldn't Toxoplasmosis occurs naturally in the wild? If that's the case, why would toxoplasma harm red worm? Just curious.

RE: Coffee and cat litter

Drop some dry coffee grounds on your carpet, and then try to clean it up. No way would I use them as litter.

On the other hand, I would like to see how worms reacted the feces and urine. I don't use my vermipost on edible plants, so I'm not concerned with anything that might leach it's way into the vermipost.

RE: Coffee and cat litter


Toxoplasmosis does not affect the worms but after the worms have processed all the faeces it may still be present in the compost and end up in the soil if you use it in your garden. And possibly end up in your food if you grow your own vegetables.

RE: Coffee and cat litter

'Causes, incidence, and risk factors

Toxoplasmosis is found in humans worldwide, and in many species of animals and birds. Cats are the definitive host of the parasite.

Human infection may result from:

Blood transfusions or solid organ transplants

Carelessly handling cat litter, which can lead to accidental consumption of infectious particles

Eating contaminated soil

Eating raw or undercooked meat (lamb, pork, and beef)

Toxoplasmosis also affects people who have weakened immune systems.'

i would not use it as compost

Here is a link that might be useful: toxoplasmosis

RE: Coffee and cat litter

It is highly dangerous to your cat to expost them to coffee grounds. Caffeine is very toxic to cats and when your cat grooms, he/she will ingest the coffee and either become extremely ill or die.

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Vermicomposting Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here