Moka Pot Filter Paper: Do You Need One? Pros, Cons & Taste Test

A moka pot filter paper is optional — but it changes the coffee. A thin paper disc sits on top of the coffee grounds in the filter basket. It catches micro-fines and oils that the metal filter cannot. The result is cleaner, smoother coffee with less body. Here is whether that trade-off is worth it for you.

"Moka Pot Filter" Can Mean Three Different Parts

A moka pot has two filters built in, and the paper disc is a third, optional one. People search "moka pot filter" (or "mocha pot filter") meaning any of them, so here is the difference before anything else.

• The funnel basket: the metal cup that holds the coffee grounds. It sits in the water chamber.
• The filter plate: the flat metal screen in the upper chamber, held by the rubber gasket. This is the part that clogs and the part you replace with the gasket. Its size depends on the pot. Bialetti lists its filter plate at 57 mm for the 3-cup and 64 mm for the 6-cup Moka Express (Bialetti seal and filter size table).
• The paper filter: a thin disc you add on top of the grounds. Optional. This page is about that one.

If your coffee is coming out slow or muddy, the part you want is the filter plate and gasket, not paper. See our moka pot accessories guide for replacements.

What Does a Paper Filter Do in a Moka Pot?

A standard moka pot uses only a metal filter plate with tiny holes. This lets through two things that paper catches:

• Micro-fines — tiny coffee particles smaller than the metal filter holes. These create the slight sludge at the bottom of a moka pot cup. Paper catches them.
• Coffee oils (cafestol and kahweol) — these oils give moka pot coffee its rich, thick body. Paper absorbs a significant portion of them.

Whether you want those oils in your cup is a matter of personal taste. Some people love the thick, oily body of unfiltered moka pot coffee. Others prefer a cleaner, lighter cup. The paper filter gives you the second option.

Paper Filter Pros and Cons

Taste Test: With vs Without Paper Filter

I ran a side-by-side test with the InstaCuppa Aluminum Moka Pot. Same beans, Araku Valley medium roast. Same grind, medium-fine. Same water, hot from a kettle.

Without paper filter:

• Thick, full body with an oily mouthfeel
• Bold, chocolatey flavour with low acidity
• Thin layer of sludge at the bottom of the cup (normal)
• Classic moka pot taste — strong and rich

With paper filter (AeroPress paper, trimmed to fit):

• Noticeably lighter body — more like a strong drip coffee
• Fruit and citrus notes more prominent
• Zero sediment — completely clean cup
• Less "espresso-like", more "pour-over-like"

My personal preference: without paper. I like the thick body and oily richness of a traditional moka pot brew. But if you are coming from pour-over or drip coffee and find moka pot coffee too heavy, the paper filter bridges the gap nicely.

The Cholesterol Angle — Does It Matter?

Where the numbers come from: A Nestlé Research Centre team measured cafestol in real brews. They reported it plainly:

"Scandinavian-style boiled coffee and Turkish-style coffee contained the highest amounts, equivalent to 7.2 and 5.3 mg cafestol per cup... In contrast, instant and drip-filtered coffee brews contained negligible amounts of these diterpenes, and espresso coffee contained intermediate amounts, about 1 mg cafestol and 1 mg kahweol per cup."
— Gross, Jaccaud & Huggett, Food and Chemical Toxicology, 1997

A later Brazilian study ranked the brews by how much diterpene they pull through. Boiled came highest. Then French press, then moka, then Turkish. Paper-filtered was lowest — Novaes et al., Plants, 2023. Paper-filtered brews measured 1.62 to 2.98 mg of cafestol a litre — Rendón et al., Food Research International, 2018.

How much cafestol actually moves cholesterol: In one trial, 10 men took about 60 mg of pure cafestol a day. They did this for 28 days. Their LDL rose by 0.57 mmol/L, or about 22 mg/dL. The effect tracked the dose — Urgert et al., American Journal of Clinical Nutrition, 1997. That daily dose is a long way from a moka cup at roughly 1 mg.

The population evidence: A Norwegian study followed 508,747 men and women. It ran for about 20 years. Unfiltered brew was linked to higher death rates than filtered brew. When the team left cholesterol out of their model, the heart-death signal was strongest in people drinking 9 or more cups of unfiltered coffee a day. A raised risk also showed up in men aged 60 and over — Tverdal et al., European Journal of Preventive Cardiology, 2020.

If you drink 1 or 2 cups of moka pot coffee a day, which is most people, the cafestol load is small. Paper is a cheap precaution if you have high cholesterol. Same if heart disease runs in your family, or you drink several cups a day.

This is not medical advice. Talk to your doctor if cholesterol is a concern. The point is simple. The paper option exists, and it costs about Rs 1.50 a brew.

How to Use a Paper Filter in a Moka Pot

1. Get the right size paper — measure across the top of your filter basket in mm. Use the size table below as a guide.
2. Fill the basket with coffee grounds as normal — level off the top without pressing down.
3. Place the paper disc on top of the grounds — it should sit flat. Some people wet the paper first (like pour-over). I find it does not make a noticeable difference with moka pots.
4. Assemble and brew as normal — the paper does not change the process. Brewing takes a little longer because water passes through an extra layer.
5. After brewing, the paper lifts out with the coffee puck — cleanup is actually easier. The puck comes out in one clean disc instead of loose grounds.

What Size Filter Paper Fits a Moka Pot?

A moka pot filter paper should be about as wide as the metal filter plate, because the plate sits right on top of the basket. Bialetti gives these filter plate sizes for its Moka Express (Bialetti seal and filter size table). The AeroPress paper is 2.5 inches across, which is about 63.5 mm (AeroPress micro-filters).

Other brands use their own sizes, so measure your pot before you buy a pack. The InstaCuppa Aluminium Moka Pot makes 300 ml, or 6 moka cups. We do not list its basket size, so measure it with a ruler first. In my taste test I trimmed an AeroPress paper to fit it.

Where to Buy Moka Pot Filter Papers in India

The most practical route for Indian buyers is a pack of AeroPress filter papers. At Rs 150 for 100 papers, each paper costs about Rs 1.50. That is the easiest option to find. Prices change, so check the price on the day you buy.

Do not use regular printer paper, tissue paper, or paper towels. Only food-safe, unbleached coffee filter paper is suitable. Regular paper can contain chemicals and bleaching agents that you do not want in your coffee.

Related Reading

• How to Use a Moka Pot: 7-Step Brewing Guide
• Moka Pot Grind Size: Exact Settings for 5 Grinders
• Moka Pot Coffee India: Complete Guide (Pillar)
• Moka Pot Accessories India: Gaskets, Filters & More
• Best Coffee for Moka Pot India: 6 Brands Tested

Shop InstaCuppa Moka Pots

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Sources

• Gross G, Jaccaud E, Huggett AC. Analysis of the content of the diterpenes cafestol and kahweol in coffee brews. Food and Chemical Toxicology, 1997;35(6):547-54.
• Urgert R, et al. Separate effects of the coffee diterpenes cafestol and kahweol on serum lipids and liver aminotransferases. American Journal of Clinical Nutrition, 1997;65(2):519-24.
• Rendón MY, et al. Physical characteristics of the paper filter and low cafestol content filter coffee brews. Food Research International, 2018;108:280-85.
• Novaes FJM, et al. Extraction of diterpene-phytochemicals in raw and roasted coffee beans and beverage preparations. Plants, 2023;12(8):1580.
• Tverdal A, et al. Coffee consumption and mortality from cardiovascular diseases and total mortality: does the brewing method matter? European Journal of Preventive Cardiology, 2020;27(18):1986-93.
• AeroPress, Paper Micro-Filters product page (dimensions: 2.5 inch diameter), read 21 October 2026.
• Bialetti replacement seal and filter, size table (filter plate size by Moka Express size), JB Hi-Fi listing, read 21 October 2026.
• Blue Tokai Coffee, AeroPress Coffee Filter Paper (100 filters, Rs 150), read 21 October 2026.

This is food information, not medical advice. Talk to your doctor about cholesterol.

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