Do you need a filter in a portafilter?

Ever wondered if placing a filter inside your portafilter actually makes your coffee taste better?

If you're like me and passionate about brewing espresso at home, you've probably experimented with countless techniques and accessories. But recently, I've been noticing more home baristas talking about placing paper filters inside their portafilters. Curious, I decided to look deeper—does this small change really make a noticeable difference?

What's the purpose of a portafilter filter?

Most espresso lovers know that coffee extraction is sensitive to every little detail—from grind size to tamping pressure. But filters in portafilters? That's a bit newer on the radar. While traditionally your espresso machine basket handles filtration directly, adding a paper filter at the bottom of your basket seems to have an interesting effect.

I found that using a paper filter inside the portafilter basket can improve consistency in extraction. It essentially reduces the fines—the tiny coffee particles—that make it into your cup. This often results in a cleaner, sweeter, and less bitter espresso.

Choosing the right portafilter basket also matters. If your basket is too porous, a paper filter can help balance it out, giving you better control over your brew.

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Does it change the taste of your espresso?

This is the big question. In my experience, and from what I’ve gathered from other home baristas online, adding a paper filter inside your portafilter basket can actually make a positive difference in your espresso’s taste. It removes some of the coffee oils that could otherwise make your espresso taste slightly bitter or muddy. This small adjustment can lead to brighter, more distinct flavours coming through clearly.

There's an interesting guide I found that explains why paper filters might influence espresso flavour this way.

Should you use paper filters regularly?

This really depends on what kind of espresso you prefer. If you love full-bodied espresso with all its natural oils and crema intact, you might prefer to skip the filter. But, if you're after clarity of flavour, especially in fruity or floral coffees, a paper filter can make a huge difference.

What I've seen from other espresso lovers is that using paper filters tends to suit those who enjoy experimenting and tweaking their brewing process. If that sounds like you, I'd say definitely give paper filters a try.

How to start using paper filters in your portafilter

To start, you simply place the paper filter at the bottom of your basket before adding coffee grounds. Make sure your grind is slightly finer than usual since the filter will increase water flow. This was a useful tip I picked up from a discussion—many people realised they could adjust their grind finer and still maintain great extraction.

And don't forget distribution tools, which can really help ensure your coffee bed is perfectly even. A tool like a wdt tool can significantly improve your results.

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What type of filters work best?

Not all filters are created equal. Some baristas prefer specially designed espresso paper filters, but I've found that even AeroPress filters cut to size can do the job just fine. However, specifically made espresso filters do offer a bit more consistency and ease of use, which is always welcome during a busy morning.

If you don't have access to espresso-specific paper filters, check out this handy discussion that shares alternatives that work effectively.

Cleaning and maintenance with paper filters

Another benefit I've noticed when using paper filters is that cleaning your portafilter basket becomes quicker. The filter prevents the tiny coffee particles from sticking stubbornly to the basket, making cleaning as simple as discarding the paper and rinsing the basket briefly. Less hassle means more time enjoying your espresso!

And speaking of maintaining your equipment, always invest in quality gear. A sturdy portafilter handle or a reliable coffee scale can transform your brewing routine into a more pleasant, streamlined experience.

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Final thoughts—is it worth it?

Using paper filters in your portafilter is something every espresso enthusiast should at least try. If you're someone who appreciates clarity and cleaner tasting coffee, you'll likely enjoy this addition. Plus, there's nothing to lose—it’s an affordable and simple experiment.

If you're interested in learning more or have questions about brewing espresso at home, feel free to get in touch. Happy brewing!

Written By Laurie Nance

I'm the founder of Brewedco Coffee™, passionate about coffee, coffee tools, and helping others better understand how to utilize them. With years of experience in the coffee industry, I love sharing insights on brewing techniques, choosing the right equipment, and the science behind making the perfect cup.