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Enrich your garden with used coffee ground!

Why discarding tonnes of used coffee ground when you can recycle it for your garden and significantly reduce greenhouse gas emission.

Photo of Duong Nguyen

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Statistics has shown that 1 tonne of coffee waste emits 1.6 tonnes of Greenhouse gasses, primarily being methane (CH4) with which more than 20 times the global warming capacity of carbon dioxide. So taking an estimated 6 million tonnes of coffee ground waste produced annually worldwide into consideration, it is a lot of GHG emissions just from coffee waste.  Taking it out of the waste stream is doing the climate a favour.  

Coffee grounds have been used as soil conditioner and compost additive with the same amount of nitrogen as grass clippings – 2% or so, meaning they heat up quickly when added to compost and help turn the entire pile into a beautiful dark rich soil. They are also very suitable for the worm farm, with those little guys loving used coffee grounds. When being used up to 70% of the worm farm total feed, coffee ground can bring excellent results to your garden.

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You can contribute to reduce the coffee ground waste and find more tips on using coffee ground waste by collaborating with this website:

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Join the conversation:

Photo of Ewa Bilska

I really like this idea! As soon as I read it I started to collect coffee ground waste to fertilise my plants. I am also thinking how to connect coffe shop owners in my town with gardeners.

Photo of Lyn Evans

Hi Duong,
Coincidentally, yesterday a tradesman told me he always uses his ground coffee waste for fertilising his citrus trees, and then I saw your post, so this is excellent news for the environment. Thank you.

Photo of Duong Nguyen

Thanks for your story, Lyn, I am so happy to hear that. Hopefully this simple idea will be reached to everyone.

Photo of Arushi gupta

This is a really handy tip

Photo of Duong Nguyen

Thanks Arushi, hope you can use it for your garden.

Photo of Aii Arisma

I always believe that everything comes from the nature is good for us :) I think this idea can be implemented easily, knowing that most of the people consume coffee everyday. I also a good idea to introduce this idea to coffee shop owners

Photo of Duong Nguyen

Thanks Aii, the website attached is the organization for the coffee shop owners to contribute to reducing their coffee waste, so I think it would be great if they can collaborate with that organization. Also, I did research and it showed that each cup of coffee produces 20 grams (3/4 oz) of grounds, equivalent to 7.3 kg (16 lbs) of waste/year/person. So, it is fantastic that each coffee drinker can mind their step toward recycling coffee ground waste and save the environment.

Photo of Pablo Horacio Sierra

Indeed, in our family for years, we used the coffee land as fertilizer, and is very good effect on garden plants.

Photo of Duong Nguyen

Hi Pablo, thanks for your sharing, the best of all, this coffee ground waste is free, and you can go to ask your local coffee shops for their coffee waste. So it would be fantastic if everyone know about this free ingredient to enrich their garden and help to reduce the GHG emissions.

Photo of Vinh Pham

Hi Duong, great story. I have just had a look at the website. It seems that this idea is widely spread and succeeded.

Photo of Duong Nguyen

Thanks Vinh, hopefully this simple and easy-to-do idea can be widely spread.