Aeropress Filter Paper vs Metal: Which Is Better?

If you’ve ever wondered why your Aeropress coffee tastes thin, overly smooth, or just “off,” you’re not alone. Many new (and even experienced) coffee brewers wrestle with questions about filters, grind size, water temperature, and even how to stir properly. These aren’t minor details—they fundamentally change how your coffee tastes.

In short: Most coffee drinkers prefer paper filters over metal for Aeropress. Metal lets more sediment and oils through, resulting in a heavier, grittier cup similar to French press. White Aeropress filters are also free of dioxins and avoid the cardboard-like taste of brown filters.

Filter Paper vs Metal: The Taste Test

The most common question about the Aeropress is whether to use the included paper filters or a metal filter. The short answer? Go with paper. Our tests—conducted with multiple coffee enthusiasts—showed that most people preferred the flavor produced by paper filters. Metal filters, with their larger holes, allow more fine coffee particles (fines) and natural oils to pass through. This results in a heavier, grittier cup that’s often compared to French press coffee. While some enjoy that style, many find it too intense or muddy. Paper filters catch those fines and oils, producing a cleaner, more balanced cup that highlights clarity and brightness.

Why Your Aeropress Coffee Might Taste Too Smooth or Weak

If your Aeropress coffee feels thin or lacks body, you’re likely running into one (or more) of three issues:

• Grind Size Too Coarse: A finer grind extracts more flavor. If you’re using a blade grinder, run it for 20–30 seconds. For a burr grinder, aim for a setting between drip and espresso.
• Not Enough Coffee: Stick to the scoop that comes with your Aeropress to ensure proper dose and flavor balance.
• Personal Preference: Aeropress coffee is naturally less bitter and more smooth. If you’re used to darker, bitter roasts, the clean profile might taste “weak” to you. Try increasing coffee dose or reducing water to adjust strength.

Do You Need a Special Grinder for Aeropress?

No—you don’t need to buy an expensive hand grinder just for the Aeropress. Our tests showed that even basic blade grinders work well if you adjust your technique. Grind for about 30 seconds with two scoops of coffee. Finer grinds may clump due to static, so you might need to tap them out with a spoon. When ground fine enough for espresso-like extraction, you’ll want to press for 20–30 seconds. Coarser grinds extract faster and result in a lighter cup.

Water Temperature: Why Not Boiling?

The Aeropress manual recommends 175°F (80°C), which seems low—but there’s science behind it. In extensive testing with coffee professionals, tasters consistently preferred coffee brewed between 74°C and 80°C. Hotter water can over-extract and add bitterness. Traditional brewing methods often suggest 91–93°C, but those methods lose heat quickly during pour-over. In the Aeropress, water temperature stays consistent throughout brewing, making slightly cooler water ideal. And don’t worry—80°C is still very hot (the hottest comfortable drinking temp is around 63°C).

Why Two Scoops and Hot Water Cause Overflow

Adding 3–4 scoops of very fresh, finely ground coffee with water hotter than 80°C can cause the mixture to foam and overflow. To prevent this, try using water at 80°C or even 85°C. If you prefer a hotter brew, reduce the coffee dose to 2–3 scoops per brew.

Does the Stirring Spoon Matter?

The included Aeropress stirring tool isn’t just a spoon—it’s designed to protect your equipment. Its handle keeps the spoon from scratching the inside of the filter cap or damaging the brewing chamber. A regular spoon can work in a pinch, but the official tool is safer for your gear.

How to Make Pressing Easier

If you’re struggling to press down the Aeropress plunger, try these tips:

• Go Easy: Press just 1 cm down, pause to let trapped air help, then press a bit more. Repeat until you hear air escape, then finish pressing. This reduces resistance.
• Check Grind Size: Overly fine grinds increase resistance. If you’re using a blade grinder, shorten grind time. For burr grinders, adjust to a coarser setting.

How to Get Water to 80°C

Here are four easy ways to hit the recommended brew temperature without a fancy kettle:

• Microwave Method: Heat measured water in a container (use the Aeropress cylinder for measuring), then check temperature with a kitchen thermometer. Note the time needed for future use.
• Boil + Cool: Mix 1.5 cups of boiling water with enough cold water to make 2 cups total—that’s roughly 80°C.
• Preheat Method: Pour boiling water into your cup, wait ~1 minute to cool slightly and preheat the vessel, then pour the brewing water into the Aeropress.
• Hot Water System: If your home has an adjustable water heater set to 80°C, you’re all set. Some electric kettles also let you select precise temperatures.

Where to Buy More Filters

Every Aeropress comes with 350 paper filters—enough for months. Replacement 350-filter packs are widely available, including on Taobao and other retailers.

Frequently Asked Questions

Why does metal-filtered Aeropress coffee taste different from paper-filtered?

Metal filters allow more coffee fines and natural oils to pass through, resulting in a heavier, grittier cup similar to French press. Most testers prefer the cleaner, brighter taste of paper-filtered coffee.

What grind size works best for Aeropress?

A finer grind (between drip and espresso) extracts more flavor. Use a blade grinder for 20–30 seconds or a burr grinder set between those levels. Adjust based on taste preference.

Can I use any grinder with Aeropress?

Yes. Even a basic blade grinder works if you grind for around 30 seconds with two scoops. Finer grinds may clump due to static, so tap them out with a spoon if needed.

Why does my Aeropress coffee taste weak or too smooth?

This could be due to coarse grind, insufficient coffee dose, or personal taste preference. Aeropress coffee is naturally less bitter. Try a finer grind, more coffee, or less water to adjust.

How can I make the plunger easier to press?

Press in stages: 1 cm at a time, letting trapped air assist. Also check your grind—too fine increases resistance. Adjust grind size if needed.

How do I get water to exactly 80°C without a thermometer?

Use the microwave method (time it), mix boiling with cold water (1.5:0.5 ratio for ~80°C), or preheat your cup and brew water. Some kettles and home systems also offer precise temperature control.

Recommended FrontStreet Beans for Aeropress

For Aeropress brewing, try FrontStreet’s Strawberry Candy Espresso—a washed Geisha and washedGeisha blend offering floral, citrus, blueberry, and grape notes, bright and sweet. Or go deeper with PWN Golden Mandheling, a medium-dark roast with spice, caramel, and dark chocolate tones, delivering body and smooth crema. Both beans highlight the clarity and balance the Aeropress is known for. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.