Filter Brew Test: Aeropress, MUJI, and V60 with Different Papers

If you’ve ever wondered why your pour-over or AeroPress tastes oddly papery—or why one brew method seems to make your coffee taste better than another—you’re not alone. Filter material, paper type, and even pre-wetting can dramatically shift your cup’s balance. This test compares three common manual brewing setups using identical beans and parameters to reveal what really affects flavor.

Quick answer: The MUJI rice-shaped ceramic dripper with MUJI’s unbleached round filter produced the cleanest, sweetest, and most balanced cup—especially with flawed beans. The Hario V60, meanwhile, suffered from strong filter paper taste, while the AeroPress landed in the middle with smoother body but less clarity.

The Setup

Three brewing devices were tested side-by-side:

• AeroPress with its original paper filter
• MUJI rice-shaped ceramic dripper paired with MUJI’s round unbleached filter (HK$9 for 50 sheets, purchased at MUJI stores)
• Hario V60 plastic dripper with Hario #02 unbleached paper filter (purchased on Taobao)

Each setup used the same four fresh-roasted (in-house roasted) coffee beans:

• Timor – light roast (flawed profile, described as having off-flavors)
• Brazil Santos NY2 – medium roast, pulped natural
• Costa Rica SHB washed Tarrazú – light-medium roast
• Yirgacheffe G2 – light roast, washed

All brews used 12 grams of coffee ground at setting 10 on a Huiskeren ZD-13 grinder (equivalent to roughly medium-fine). Water volume was 200 grams at 85–87°C. Total brew time for all methods was around 2 to 2 minutes 30 seconds.

The Method

Every device followed a similar routine:

• 50 grams of water were used for an initial stir-bloom
• Remaining water was poured in a single continuous stream to reach 200g total
• AeroPress was brewed using the standard inversion ("") method
• Pre-wet all filter papers with freshly boiled water (over 90°C) prior to brewing

The same grind size, dose, and water temperature controlled variables, letting the filter and paper be the differentiating factors.

Flavor Observations by Filter Setup

Each brew method reacted differently—not just to ideal beans, but also to the “problem” coffees in the test batch.

AeroPress

The AeroPress produced a cup that was smoother and less intense than expected. Its acidity and bitterness were muted, resulting in a lighter body and more compact flavor layers. Overall, it ranked second in balance, offering a rounded, slightly soft-mouthfeel cup without much complexity.

MUJI Rice Dripper + MUJI Filter

The MUJI setup overperformed. It highlighted sweetness and aroma clearly, even with flawed beans. The body was silky, and the cup expressed both sweetness and acidity honestly—with bitterness present but well integrated. It was the most transparent and satisfying cup of the three, especially with the Costa Rican and Yirgacheffe samples.

Hario V60 + Hario #02 Filter

The V60 showed significant off-flavors from the filter paper itself. Reviewers noted a strong papery taste that overshadowed the coffee’s inherent acidity and sweetness. This masking effect was so pronounced that the V60 was effectively blacklisted for future testing. No other technical flaws were found—the issue was the paper.

The Filter Paper Wash

All filter papers were rinsed with hot water (over 90°C) before brewing. The Hario paper had the strongest initial scent, while the AeroPress filter had the mildest—its position deep in the brew chamber may have dampened odor release. The MUJI paper fell comfortably in the middle, with minimal unwanted aroma.

Takeaways & Recommendations

If you’re sensitive to off-flavors or want the most honest representation of your coffee—especially with mid- or light-roast beans—the MUJI rice dripper with its own brand of filter is the best value choice. It’s inexpensive, reliable, and brings out sweetness and clarity without extra fuss. For those unwilling to pre-wet filters, a Kono-style dripper might be a better shortcut.

Frequently Asked Questions

Which filter setup produced the cleanest and sweetest cup in the test?

The MUJI rice-shaped ceramic dripper paired with MUJI’s round unbleached filter produced the clearest, sweetest, and most balanced cup, especially with the Costa Rican and Yirgacheffe beans. It handled both good and flawed coffees with honesty and smoothness.

Did the Hario V60 perform poorly because of the dripper or the filter paper?

The poor performance was due to the Hario #02 unbleached filter paper, which had a very strong papery taste that overpowered the coffee’s inherent flavors. The V60 dripper itself wasn’t the issue, but the paper used here significantly harmed the cup quality.

Why was the AeroPress considered mid-ranking instead of the best?

The AeroPress resulted in a smoother, mellower cup with less acidity and bitterness—but also less complexity and a thinner body. While pleasant, it lacked the brightness and clarity achieved by the MUJI setup, placing it second overall.

How important is pre-wetting the filter paper?

Very. All filter papers were rinsed with hot water before brewing to reduce paper taste. The Hario paper had the strongest initial scent, while MUJI and AeroPress were milder. Pre-wetting helps minimize unwanted flavors regardless of filter type.

Is the MUJI dripper worth buying just for filter brews?

Yes. At HK$9 for 50 filters, the MUJI rice dripper and its matching paper offer excellent value, producing clean, sweet, and well-balanced cups with minimal effort or expense. It’s especially good for highlighting subtle flavors without requiring advanced techniques.

What should I do if I don’t want to pre-rinse my filter?

If you prefer not to pre-wet your filter, consider a dripper like Kono that minimizes paper taste impact. Otherwise, always rinse your filter with hot water to avoid unwanted flavors affecting your brew.

Recommended FrontStreet Coffee for Filter Brewing

For filter brewing experiments like this, try FrontStreet Coffee’s Ethiopia Guji Shakiso (bright and fruity), Colombia Narino Supremo (balanced with caramel and citrus), or Yirgacheffe Kochere (floral and citrusy). These beans respond well to pour-over methods and highlight subtle differences in filter performance. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.