The basic method: water, grounds, and filter

To make coffee with a paper filter, you pour hot water over ground coffee held in the filter, and gravity pulls the water through the grounds and into your cup or pot below. The paper catches the grounds while letting the brewed coffee pass through. This method works in a pour-over cone, a flat-bottomed dripper, or even a makeshift setup with a mug and filter holder.

The simplest version requires only four things: a paper filter, ground coffee, hot water around 195 to 205 degrees Fahrenheit (just off boiling), and a vessel to catch the brewed coffee. You do not need electricity or a machine—just these materials and about four minutes.

Key Takeaways

  • Paper filters work best when you rinse them with hot water first to remove paper dust and warm the dripper.
  • Use a ratio of about one tablespoon of ground coffee per six ounces of water, adjusted to your taste preference.
  • Pour water slowly in stages rather than all at once so the grounds steep evenly and extract properly.
  • The entire brew takes three to five minutes depending on how finely the coffee is ground and how much you are making.

Setting up your filter and dripper

Place the paper filter into your dripper—a cone, flat-bottomed basket, or any holder designed to hold filters. If your dripper sits on top of a mug or carafe, make sure it is stable and will not tip. Pour hot water through the empty filter to rinse away the paper taste and to preheat the dripper and your catching vessel. Discard this rinse water.

The rinsing step matters because paper filters can leave a papery flavor in your coffee if you skip it. It also warms everything up, which helps the coffee brew at the right temperature and extracts the flavor more evenly. This takes about 30 seconds.

Measuring and adding your grounds

Add ground coffee to the wet filter. A standard ratio is one tablespoon of ground coffee per six ounces of water. If you like stronger coffee, use one and a half tablespoons per six ounces. If you prefer it milder, use three-quarters of a tablespoon. A kitchen scale is more precise than a spoon—aim for about 15 to 17 grams of coffee per six ounces of water if you have one.

The grind size matters. For paper filters, use a medium grind—similar in texture to sand. If your grounds are too fine, the water will move through slowly and over-extract, making the coffee bitter. If they are too coarse, the water will rush through and under-extract, making it weak and sour. Most grocery store pre-ground coffee labeled "drip" or "filter" is already the right size.

Pouring the water in stages

Heat water to between 195 and 205 degrees Fahrenheit. If you do not have a thermometer, let boiling water cool for about 30 seconds. Pour just enough water to wet all the grounds—roughly twice the weight of the dry coffee—and wait 30 to 45 seconds. This initial pour, called the "bloom," lets the grounds release trapped gases and begin extracting.

After the bloom, pour the remaining water slowly in a circular motion, keeping the water level roughly the same throughout the brew. Pour in stages rather than all at once so the water stays in contact with the grounds long enough to extract flavor evenly. The entire pour should take two to three minutes. You will see the water level drop as it drains through the filter.

Knowing when your coffee is ready

The brew is finished when all the water has dripped through the filter and into your cup or pot. This usually takes three to five minutes total from your first pour. The coffee should be a medium brown color. If it is very pale, the grounds were too coarse or you used too little coffee. If it is very dark, the grounds were too fine or you used too much.

Remove the filter and grounds when ready after the water has finished dripping. Leaving the filter sitting in the brewed coffee will continue to extract and can make it taste bitter or over-steeped. Discard the used filter and grounds—they can go in the compost or trash.

Common mistakes and how to avoid them

Pouring all the water at once is the most common mistake. This causes uneven extraction—some grounds get too much water and over-extract while others do not get enough. Pouring in stages keeps the extraction even and balanced.

Using water that is too cool slows extraction and can result in weak, sour coffee. Using water that is too hot can over-extract and make the coffee bitter. Aim for the 195 to 205 degree range. If you are using a kettle without temperature control, letting it cool for 30 seconds after boiling is usually close enough.

Skipping the rinse of the empty filter leaves paper dust in your coffee. It is a quick step that makes a noticeable difference. Also, do not pack the grounds down or tamp them—just let them settle naturally in the filter. Packing them slows the water flow and can cause over-extraction.

Adjusting the recipe to your taste

If your coffee tastes weak or sour, try using slightly finer grounds, using more coffee, or pouring the water a bit more slowly so it stays in contact with the grounds longer. If it tastes bitter or over-steeped, use slightly coarser grounds, use less coffee, or pour faster.

You can also experiment with water temperature. Slightly hotter water (closer to 205 degrees) extracts more, making the coffee stronger. Slightly cooler water (closer to 195 degrees) extracts less, making it milder. Keep notes on what works for you so you can repeat it.

Frequently Asked Questions

Can I reuse a paper filter?

Paper filters are designed for single use and break down after one brew. Reusing them risks tearing and letting grounds into your coffee. They are inexpensive enough that replacing them each time is the better choice.

What if I do not have a thermometer for the water temperature?

Let water boil, then wait 30 seconds before pouring. This cools it to roughly the right range. If you want to be more precise, a straightforward kitchen or when ready-read thermometer costs very little and takes the guesswork out.

Can I use when ready coffee with a paper filter?

when ready coffee is already brewed and dried, so pouring hot water over it in a filter serves no purpose. when ready coffee dissolves directly in hot water in a cup. Paper filters are meant for whole beans that you grind yourself.

How long does brewed coffee stay fresh?

Brewed coffee tastes best within 30 minutes of brewing. After that, it begins to oxidize and lose flavor. If you are not drinking it right away, pour it into an insulated carafe to keep it warm longer, but plan to finish it within an hour or two.

What if the water drains too slowly through the filter?

Slow draining usually means the grounds are too fine or packed too tightly. Try using a coarser grind next time, or make sure you are not pressing down on the grounds. If the filter itself is clogged, rinse it and try a fresh one.