Coffee is being poured from French press to cup

Can You Reuse French Press Coffee Ground?

Audrey Harrison
Home brewer

Whether you prefer your coffee black or with cream and sugar, one thing is for certain: coffee grounds are a byproduct of the brewing process that can accumulate quickly.

While most people simply toss their used coffee grounds in the trash without a second thought, some may wonder whether these grounds can be put to use again. After all, saving up a little from everyday things is never a bad idea.

In this article, we will explore the question of whether coffee grounds can be reused and provide some creative ideas for how to make the most of this common household waste product.

Can you use French press coffee grounds again?

If you are tempted to reuse French press coffee grounds to make a second batch of coffee, we might have some good news for you. Let’s unwrap the question in the spotlight - can you use French Press coffee grounds twice?

The short answer is yes, you can use French press coffee grounds again to make a second batch of coffee. However, the resulting coffee will likely be weaker and less flavorful than the first batch, as much of the flavor and aroma compounds have already been extracted during the first brew.

There are a few tips to keep in mind when reusing French press coffee grounds. First, it's important to use fresh, clean water for the second brew. Reusing the same water can result in a bitter, unpleasant taste.

Secondly, you may need to adjust the number of coffee grounds you use for the second brew to compensate for the decreased strength of the reused grounds. Adding more grounds than you would normally use can help to boost the flavor and aroma of the second batch.

Another thing to consider is that reusing coffee grounds can lead to an increased level of acidity in the resulting coffee. This is because much of the acid has already been extracted during the first brew, and reusing the grounds can cause more of it to be released.

If you have a sensitive stomach, you may want to avoid reusing coffee grounds and dispose of them correctly for this reason.

How to reuse your French press coffee grounds?

Making a second batch of coffee in a French press from used coffee grounds is pretty easy. If you want to reuse the coffee grounds for a second cup of coffee, here are the steps to follow:

Step 1 - Cool and store the used coffee grounds

After you have brewed your first cup of coffee using the French press, remove the plunger and pour the used coffee grounds into a clean, airtight container. It's important to store the used grounds in an airtight container to prevent them from becoming stale and to preserve their freshness.

You can also refrigerate the grounds for up to 2 hours. It is not recommended to reuse grounds after 2 hours of the first brew.

Get an airtight coffee container with a date tracker and scoop from HERE.

Step 2: Prepare fresh hot water

Fill the kettle with fresh cold water and bring it to a boil. Make sure the water is not boiling when you pour it over the used coffee grounds, as this could burn the grounds and create a bitter taste.

Get an electric cordless kettle with 6 Preset Temperatures from HERE.

Step 3: Add the used coffee grounds to the French press 

You should add slightly more grounds than you used for the first cup of coffee to ensure the second cup is not weak.

Step 4: Pour the hot water over the coffee grounds

Slowly pour the hot water over the used coffee grounds in the French press, filling it to the desired level. Use a kettle or a measuring cup with a spout to control the flow of water and prevent splashing.

Step 5: Steep the coffee

Place the plunger back onto the French press and let the coffee steep for 3-4 minutes. This will allow the coffee to infuse and extract the flavor from the used coffee grounds.

Step 6: Press the plunger

Once the coffee has steeped, press down the plunger to separate the used coffee grounds from the coffee. You can then pour the coffee into your cup and enjoy your second cup of coffee.

It's worth noting that the second cup of coffee will not be as strong or flavorful as the first cup, but it's a great way to reduce waste and get a little extra caffeine kick from your used coffee grounds.

Additionally, using coffee grounds twice can lead to a slightly more bitter taste, so you may want to experiment with the number of coffee grounds you use and the steeping time to find the right balance for your preferences.

How to make reused coffee grounds taste better?

Reusing coffee grounds can be a great way to reduce waste and save money, but the resulting coffee can sometimes taste weak or bitter. Here are some tips to make reused coffee grounds taste better:

1) Use fresh water

When reusing coffee grounds, it's important to use fresh, clean water to brew the coffee. This will help to reduce any off-flavors or impurities that may have accumulated in the used coffee grounds

2) Use a coarser grind

If you're using a drip coffee maker, try using a coarser grind for the reused coffee grounds. This can help to reduce the bitterness and improve the overall flavor.

3) Use less water

When reusing coffee grounds, try using less water than you would for a fresh batch of coffee. This can help to concentrate the flavors and improve the overall taste.

4) Add spices or flavorings

You can also experiment with adding spices or flavorings to the reused coffee grounds, such as cinnamon, nutmeg, or vanilla extract. This can help to enhance the flavor and aroma of the coffee.

5) Mix with fresh coffee grounds

To improve the taste of reused coffee grounds, you can mix them with fresh coffee grounds in a 1:1 ratio. This can help to balance out any off-flavors and produce a better-tasting cup of coffee.

Overall, it's important to keep in mind that reused coffee grounds will never produce the same quality of coffee as fresh grounds. However, with a few adjustments, you can still make a decent cup of coffee with used coffee grounds. 

What are the other uses of used coffee grounds?

There are ample ways in which you can put coffee grounds to use. The next time you are about to throw away used coffee grounds, do these instead!

  • Pest control: Coffee grounds can repel pests such as ants, snails, and slugs, making them a natural and safe alternative to chemical pesticides.
  • Composting: Coffee grounds are a valuable addition to compost, helping to improve soil structure, increase nutrient content, and enhance the growth of beneficial microorganisms.
  • Deodorizer: Used coffee grounds can help absorb odors, making them a great deodorizer for the fridge, garbage can, and even your hands.
  • Cleaning: Coffee grounds can be used to scrub away stubborn stains on pots and pans, and they can also be used to clean and deodorize your garbage disposal.
  • Beauty treatments: Coffee grounds can be used in a variety of beauty treatments, including as an exfoliating scrub for the skin or as a natural hair dye.

Overall, used coffee grounds can be a valuable resource with many practical and creative uses beyond just being disposed of as waste. 

Wrapping up

In conclusion, reusing French press coffee grounds is possible, but the resulting coffee may not be as flavorful and aromatic as fresh grounds.

While some people may find it an acceptable option to stretch their coffee supply or reduce waste, it is not recommended for those who prioritize taste and quality in their coffee.

Reusing coffee grounds can also impact the brew's texture and cause sediment to accumulate in the cup, making it less appealing to drink. However, we hope you follow the above-mentioned suggestions and reuse coffee grounds the right way.


Audrey Harrison

Team TAB
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I am a coffee aficionado based in Seattle. I have devoted my passion and expertise to perfecting the art of home coffee brewing. I became known for my exquisite pour-over and espresso creations. I source coffee beans from local roasters and explores ...