Paper vs metal filter: which is better for your morning cup?

Use a paper filter if you want a clean, light cup where the fruit and sweetness stand out. Use a metal filter if you want a heavier, oilier cup with more body. Paper catches fine particles and most of the oils. Metal lets them through. That one difference explains almost everything below.

What is the actual difference in the cup?

Coffee contains oils and very fine particles of ground bean. A paper filter traps most of both, so the coffee in your mug is thin in texture and clear in flavor. A metal mesh has holes that are much larger than paper fibers. The oils pass through, and so do some fines, so the cup is thicker and a little hazy, and you will often find silt at the bottom.

The brew method often decides for you. A French press is a metal filter by design, and an AeroPress ships with paper. Our posts on French press vs AeroPress and Chemex vs V60 go into how the brewers differ beyond the filter.

When does paper win?

Paper wins when the coffee has delicate flavors you want to taste one by one. Fruit, florals and citrus come through more clearly because the oils are not coating them. Paper also wins when you do not want sediment, when you are making several cups for guests, and when you hate scrubbing a mesh basket.

It has a cost. If you rinse the paper with hot water first, you remove a papery taste, and that is one more step each morning. Filters are also something you have to remember to buy.

When does metal win?

Metal wins when you like weight in the cup. If you drink coffee with milk, the extra body holds up better, and some people find a paper-filtered cup too thin to enjoy with cream. Metal also wins on convenience over time, since there is nothing to restock.

The trade is sediment and upkeep. A metal filter works best with a coarser grind, because fine grounds slip through. Oils build up in the mesh, so wash it with soap and brush it. Our guide on cleaning a French press applies to mesh baskets too. For a sense of what body means in the cup, see what body means in coffee.

Which of our coffees suit which filter?

We do not claim any coffee needs one filter. This is how we would lean, going by the notes and the roaster's own suggestions for each bag.

For paper, No. 2 Good Sense. The roaster pairs it with pour-over, and the notes are milk chocolate, fruit and caramel. A natural Ethiopia with fruit in the cup is the kind of coffee a paper filter keeps clear.

For metal, No. 1 Common Sense. The roaster points it at drip or French press, and describes it as taking milk without falling apart. The notes are cocoa, red apple and brown sugar, and the extra body from a French press suits that.

For espresso or a moka pot, No. 3 Position. The roaster recommends it for espresso, moka and anything with milk. It has dark chocolate, dried fruit and earthy notes, the sort of cup that is meant to be heavy.

You can browse all ten coffees. If you are not sure which cup you like, a subscription (11% off, skip or cancel in one click) lets you rotate bags and test them both ways.

Can you use both?

Yes, and that is a good way to decide. Brew the same coffee twice, once through paper and once through metal, with the same dose and water. Taste them side by side. The ratio stays the same either way, so start with the numbers in our pour-over ratio cheat sheet and change only the filter. The cup you reach for second is your answer.

One last note on grind. Paper copes with a medium grind and slows down if the grind is too fine. Metal wants coarse. If you switch filters, adjust the grind before you decide the coffee is the problem.

The best filter is the one that gets you the cup you want to drink tomorrow.