How Do You Keep Coffee Grounds Out Of Your Coffee?

Do you struggle to keep the pesky grounds out of your cup of coffee?

Hardly anyone likes guzzling down black sludge at the bottom of their cup. 

Fortunately, you can fix this issue with a few simple steps, and start enjoying smooth coffee!

Coffee grounds in the cup are a very common problem with percolators and French presses, but can also happen with other brewing methods.

Let’s take a look at the causes and find out what you can do about it.

How To Keep Coffee Grounds Out Of Coffee

When you’re bothered about grounds in your cup, the first thing you need to do is find out why they are ending up in the wrong place.

Some of the most common reasons are:

Grind Size

No matter which brewing method you use, a grind size that is too fine can result in grounds in your cup.

As a rule of thumb, the grind size should be medium-coarse for most drip and pour-over brewing methods. A very fine grind size is only suitable for espressos and ibriks.

To make sure you have enough control over the grind size, you should invest in a good grinder. It doesn’t have to be an expensive high-end option to achieve results.

A hand-powered burr grinder, like the Hario Skerton, or an electric grinder at the more affordable end of the scale, like the Baratza Encore, are decent options.

As a rule of thumb, you should avoid blade grinders, as they have a tendency to hack your beans into an inconsistent mess.

Troubleshooting With Different Brewers

While grind size is a factor that affects the end result of pretty much every brewing method, there are also factors more specific to the kit you’re using.

French Press

Having coffee grounds in your cup is a common problem with French presses, because of their working mechanism. A coarse, even grind size is very important in this case.

For a quick grind size check, make note of how it feels to press the mesh filter down. If it feels heavy and you struggle to press down, the grounds are too fine. On the other hand, if it feels extremely light and pressure-free, the grind size is too coarse.

However, you should keep in mind that having some fine grounds residue is normal in a cup brewed with French press. In fact, it’s even desirable, as the fine coffee powder adds richness and texture to your cup. If you find even the smallest amount of grounds in your cup unpalatable, you might want to use a different brewing method.

Moka Pots

As with French presses, the most common problem with Moka pots is grind size - too small, and the grounds will just make their way through the filters.

Another common issue with Moka pots is ghost coffee residue building up inside the machine.

Although they are small and cute, these stovetop coffee makers have a lot of parts inside them. Not cleaning them out regularly will cause old coffee grounds filtering out into your new cup.

You can watch this video for instructions on how to clean your Moka pot:

Filter Coffee Machine

Filter coffee machines are relatively automated and hassle-free.

However, if you find yourself sipping on some coffee dust, it’s probably time to give the machine a good scrub or change the filters you use.

Leftover grounds in a cup of filter coffee are usually caused by the build-up of old residue inside the machine. You can clean it from the inside using a vinegar and water solution that can be made easily at home.

Sometimes, the filter you use can also cause problems. If the filter is too small, or if you push it too far down the drip hole, the water can splash back into the brewing basket, causing grounds to end up in the pot.


Although there are many different ways to make pour-over coffee, having grounds in your coffee is usually caused by the same reasons no matter which method you use.

Ground beans that are too fine are the usual suspect. Try using a coarser setting on your grinder and make sure it’s producing an even grind. If this doesn’t work, give everything in your kit a good clean and your mug should clear up.

Found The Right Answer?

Discovering black mud in the bottom of your mug, or even worse, tiny coffee floaters everywhere in your cup, can really ruin the enjoyment of your caffeine fix.

Thankfully, the steps to resolve the issue are pretty straightforward.

Although there are a myriad of ways to brew coffee, this problem is usually caused by two things: grind size and old residue. 

Make sure your grind size isn’t too uneven or powdery, and clean your kit. 

That should do it!

Click Here to Leave a Comment Below 0 comments

Leave a Reply: