Skip to Content

Can You Reuse Coffee Grounds?

If you make coffee every day, you’re going to end up with a lot of used coffee grounds. This can be a major waste if you throw the coffee grounds out after brewing with them. But can you reuse coffee grounds to make a second pot of coffee? 

Rebrewing coffee grounds can be done. However, it results in a weak brew lacking aroma and flavor compared to the first brew of the coffee grounds, so it isn’t recommended. Used coffee grounds should be reused in other applications around the house, such as composting and pest control. 

It’s not a great idea to rebrew coffee grounds for another pot of coffee, but you’d be amazed at how many other things you can still do with them after your first pot. Read on to learn more about the second life of coffee grounds and how you can reuse them around your home. 

Can You Rebrew Coffee Grounds?

Technically you can rebrew coffee grounds, but that’s not the same thing as recommending it. While you’ll get a result that still looks somewhat like coffee, it’s going to be lacking a lot of the body, flavor, and aroma of your first brew with the grounds. 

For this reason, no coffee enthusiast could recommend that you rebrew coffee grounds if you want to preserve the flavor of the coffee. Rebrewed coffee beans won’t have the same amount of bioavailable caffeine either, so you’ll be drinking a weaker cup of coffee too.

So is there ever a time when it’s appropriate to rebrew coffee grounds? During food rationing, double-brewing coffee grounds is an accepted way to help this morale-boosting resource go further. 

You can also rebrew coffee if you’re in dire financial straits if you’re trying to save money. Outside of a ration, however, you’ll want to go with fresh coffee grounds for every brew.  

How Many Times Can You Use Coffee Grounds? 

If you need to rebrew coffee grounds, a second brew is the most you can expect to get out of them. Brewing coffee grounds past this point isn’t worth the trouble, as you’re not getting much of the benefit of the coffee grounds once they’ve been brewed multiple times. 

recycle coffee grounds

How Can You Reuse Old Coffee Grounds?

Even though you can’t really rebrew coffee grounds without a major downgrade in quality, used coffee grounds are useful around the house in other ways. Here are just a few of the methods you can use to recycle your brewed coffee grounds around the house: 

  • Compost: Possibly one of the best uses of old coffee grounds is as an ingredient in your compost pile. Coffee grounds are chock-full of minerals and nutrients that plants love, especially ones that enjoy acidic soil. Coffee grounds can also help break down other materials in your compost pile because of its weak acid content.
  • Flea control: Fleas hate the smell of coffee, so rubbing coffee grounds in your dog or cat’s fur after a bath and letting them naturally dry/shake the coffee grounds out can give them an extra layer of homeopathic protection against bloodsucking pests. 
  • Pest deterrent: Fleas aren’t the only bugs that dislike the smell of ground coffee. Place shallow bowls of freshly ground coffee out to deter common insect pests like flies and mosquitoes. They also make any interior or exterior area smell nice to humans, which is an added bonus. 
  • Skin care: Coffee grounds make an excellent exfoliant for scrubbing away dead skin on your face. Use it raw and rub it around on your skin before rinsing or incorporate it in homemade lotions or soaps.
  • Dye: Coffee grounds can be used to dye paper, fabric, and even hair. This is similar to the way you can use tea bags to tea dye fabric.  This natural dye is also non-toxic and won’t damage the environment like some synthetic dyes might. It’s less damaging to your hair than chemical dyes, too. 
  • Cleaning: Coffee grounds can be used in multiple cleaning applications, from scrubbing pots and pans to weighing down fireplace ashes when you’re sweeping out the fireplace. You can also polish your sink or scrub out your grill with them. 

As you can see, there are many ways you can reuse coffee grounds around the house without putting them back through your coffee maker. To get the most out of your used coffee grounds, stick to non-edible recycling options. 

Coffee Grounds Are Great for Recycling

While coffee grounds aren’t that delicious if you try to brew them more than once, that doesn’t mean you have to throw your used coffee grounds in the trash. There are plenty of other ways to reuse coffee grounds around the house to make the most of this precious organic resource.

Want to save this Can You Reuse Coffee Grounds post to read later?  Save it to your favorite Pinterest Board and pass it on!

can you reuse coffee grounds graphic