22 Genius Uses for Your Leftover Coffee Grounds

22 Genius Uses for Your Leftover Coffee Grounds

How many times without thinking do we just trash our coffee grounds? Who would have thunk that there are hundreds of ways to reuse them. Here are 22 Uses for your leftover coffee grounds.

1. Fantasic Fertierlizer

Some flowering plants, like hydrangeas, change color depending on the pH level of the soil. Adding coffee grounds will reduce the pH level and give you bright beautiful blue flowers.

2. Organic Pesticide

Unlike worms, slugs, snails, and other bugs don’t like the acidity of coffee and won’t cross the ground if it’s sprinkled with java.

3. Animal Repellent

Tired of your neighbors cats traipsing through your flowers? Just sprinkle some coffee grounds and orange peel where you don’t want them to walk.

4. Extend Cut Flower Life

Using a coffee-soil mix for your flower vase not only looks cool and lengthens your cut flowers life, it also acts as an air freshener in the room.

5. Natural Cleaning Scrub

A few coffee grounds on a rag can help scrape away caked-on dirt. Just make sure not to use it on ceramic or other dishes that stain easily.

6. Furniture Polish

Use vegetable oil or similar and coffee grounds or instant coffee to mask scratches in many shades of wood.

7. Compost

The great thing about sticking to simple brew methods that use only a paper filter and coffee grounds is that both are compostable. Used coffee grounds happen to be rich in nitrogen, which makes them great for composting. (Worms love coffee almost as much as you do!) In a compost pile, aim for a ratio of one part leaves to one part fresh grass clippings to one part coffee grounds. Keep in mind that freshly; brewed coffee grounds won’t have the same effect on your garden; you need to be sure that they have broken down and composted first.

8. Meat Tenderizer

Using coffee as a spice for a meat rub will tenderize it and add a smokey flavor. Get a recipe here.

9. Cool Kids Crafts

Don’t wait millions of years for your seashells to fossilize. Make your own instant fossils with coffee grounds and flour. Perfect for toy- dinosaur footprints. Directions here.


10. Refridgerator Odor Killer

Kill fridge odor Wouldn’t you rather smell coffee than two- week-old leftovers, half-rotten produce or spoiled milk? If your fridge is a nightmare of foul odors, place a bowl of fresh, unused coffee grounds inside and leave it for a day or two. The coffee will absorb the odors and you’ll crave a cup whenever you open the door. This odor-killing trick works for practically anything else as well just place the item in a sealed plastic bag along with an open can of coffee grounds and bye-bye stinky fridge.

11. Reduce Cellulite

Pricey cellulite creams almost always have one major ingredient in common: caffeine, which supposedly enhances fat metabolism, reducing the appearance of these fatty pockets under the skin. To make your own coffee cellulite treatment at home, mix warm used coffee grounds with coconut oil and rub it onto your skin in circular motions for a few minutes before rinsing.

12. Shine up those Dull Locks

Who doesn’t want shiny, healthy-looking hair? Coffee is often recommended as a simple, natural treatment to make hair extra-glossy. Brew up an extra-strong pot, let it cool and apply it to your dry, clean hair. Leave it on for at least twenty minutes, then rinse. Keep it up once a week or so for best results.

13. Skin Exfoliant

The same properties that reportedly enable coffee to reduce the appearance of cellulite can smooth and tighten your skin, and the texture of ground coffee will buff away dead skin cells, too. Make your own coffee-based scrub by combining a tablespoon of coffee grounds with half a tablespoon of olive oil or coconut oil and, optionally, a drop of your favorite essential oil.

14. Ant Repellent

Sprinkle dry, used coffee grounds in problem areas where you notice ants in your home or yard and they might just pick up and leave. To tackle huge ant mounds, pour an entire pot of brewed coffee right on the mound.

15. Grow Mushrooms

Used coffee grounds are an ideal medium to grow many kinds of mushrooms, including oyster mushrooms. You can actually purchase mushroom-growing kits from a company called Back to the Roots which includes reclaimed coffee grounds mushroom roots and a mini spray bottle. The kit can produce up to 1.5 pounds of oyster mushrooms within 10 days.

16. Home Decor

Stale or dirty coffee beans are still a thing of beauty. Use them as vase fillers, or in cups or jars full of pens and pencils. Not only are they pretty, they continue to smell good for quite a while, too. Bonus: Add a tea light candle to make a great room freshener.

17. Secret Ingredient

Just a little hint of coffee can be the ingredient that becomes your undisclosed magic touch in foods like chili, ice cream and chocolate cake. Use a little bit as a marinade for teaks and not only will it make them unbelievably tender, it’ll also provide a hint of deep, smoky flavor.

18. Ban the Roaches

You can create an effective roach trap by: Place used coffee grounds in an open top glass jar. Add enough water to be about 2 inches deep from the bottom and mix the water and coffee grounds. Stick a strip of tape up the side of the jar so that a cockroach could climb up it and basically fall in to the jar Leave the jar overnight where you think they congregate the most (behind a major appliance, in the bathroom, etc). Cockroaches can’t resist the smell of used coffee grounds. They will climb into the jar and drown in the water. Dispose of the dead roaches in morning and repeat for as long as possible. Usually if there is one cockroach, there are more.

19. Paint

Coffee grounds and water (aka second-round coffee) make an excellent nontoxic paint.

20. Remove Dark Eye Circles and Puffiness

Just like coffee wakes YOU up in the morning, it can also wake up your face by reducing puffiness and tightening skin. See how it works here.

21. Homemade Soap

You can DIY this masculine (aka non-floral) soap out of recycled hotel soaps and coffee. It’s a great (and nearly free) homemade gift for anyone on your list. See how here.

22. Make Coffee Candles

If you are ready to venture into the world of homemade candles. Get ready to get creative. There are many ways to do it. Check out this recipe.


Wow! Who would have guessed we could use our favorite drinks leftovers for so many cool things? Have anything to add? Let us know in the comments.



About Laura 13 Articles
Laura is a Wife, Mother, U.S Army Veteran and Avid Coffee Drinker.