How To Make Coffee: A Simple English Guide

Quick answer

• Start with fresh, quality beans: Whole beans ground just before brewing offer the best flavor.
• Use filtered water: Tap water can introduce off-flavors. Aim for water around 195-205°F (90-96°C).
• Get the grind right: The ideal grind size depends on your brewing method. Too fine can lead to bitterness; too coarse can result in weak coffee.
• Measure carefully: A good starting point is a 1:15 to 1:18 coffee-to-water ratio (e.g., 1 gram of coffee to 15-18 grams of water).
• Ensure a clean brewer: Residue from old coffee oils can make your brew taste stale or bitter.
• Experiment: Adjusting grind, ratio, and water temperature will help you find your perfect cup.

Who this is for

• Beginners: If you’re new to brewing coffee at home and want to understand the fundamental steps for a great cup.
• Those seeking improvement: If you’re making coffee but find it’s often too bitter, weak, or just “not right,” and you want to troubleshoot.
• Anyone who wants a straightforward approach: This guide focuses on the core principles of how to make coffee in English, without overly technical jargon.

What to check first

Before you start brewing, a few key elements can make or break your cup.

• Brewer type and filter type
• What to check: Identify your specific coffee maker (e.g., drip machine, pour-over cone, French press, AeroPress). Also, note the type of filter it uses (paper, metal, cloth).
• Why it matters: Different brewers and filters interact with the coffee grounds and water in unique ways, affecting extraction and clarity. For example, a paper filter will remove more oils than a metal filter, leading to a cleaner taste.
• Common mistakes: Using a filter not designed for your brewer, or a paper filter that’s been rinsed with soap. Always use the correct filter and rinse paper filters with hot water to remove any papery taste.

• Water quality and temperature
• What to check: Assess your tap water. Does it have a strong chlorine smell or taste? If so, consider using filtered water. For temperature, if you’re using a kettle, check if it has a temperature setting or use a thermometer.
• Why it matters: Coffee is about 98% water, so its quality significantly impacts flavor. Water that’s too hot can scald the grounds, leading to bitterness. Water that’s too cool won’t extract enough flavor, resulting in a weak, sour cup.
• Common mistakes: Using water straight from a boiling kettle (let it cool for 30-60 seconds) or using water that tastes “off.”

• Grind size and coffee freshness
• What to check: Examine your coffee beans. Are they whole beans or pre-ground? If whole, do you have a grinder? Note the texture of the grounds if you’ve already ground them.
• Why it matters: Freshness is paramount. Coffee starts losing its aromatic compounds shortly after grinding. The grind size needs to match your brewing method for optimal extraction.
• Common mistakes: Using stale, pre-ground coffee, or grinding too far in advance. Also, using a blade grinder which produces inconsistent particle sizes, making extraction uneven. A burr grinder is recommended for consistency.

• Coffee-to-water ratio
• What to check: Do you have a kitchen scale? If not, you’ll be relying on volume measurements (scoops and cups), which are less precise.
• Why it matters: This ratio dictates the strength and flavor profile of your coffee. Too little coffee results in a weak, watery brew; too much can lead to an overly strong or bitter cup.
• Common mistakes: Eyeballing the amount of coffee or water. For example, using a coffee scoop that’s too large or not filling your water reservoir to the desired level.

• Cleanliness/descale status
• What to check: Look inside your coffee maker. Are there any visible coffee oils, residue, or mineral buildup (especially in drip machines or kettles)?
• Why it matters: Old coffee oils become rancid and impart a bitter, stale taste to fresh brews. Mineral buildup can affect the machine’s performance and the water temperature.
• Common mistakes: Neglecting regular cleaning and descaling. Most manufacturers recommend cleaning after each use and descaling every 1-3 months, depending on water hardness.

Step-by-step (brew workflow)

This workflow assumes a standard drip coffee maker or pour-over method, but principles apply broadly.

1. Heat your water:

• What to do: Heat fresh, filtered water to between 195°F and 205°F (90°C – 96°C). If using a kettle without temperature control, bring it to a boil and let it sit for about 30-60 seconds.
• What “good” looks like: Water that is hot but not aggressively boiling.
• Common mistake: Using boiling water, which can burn the coffee grounds and lead to bitterness. Avoid this by letting the water cool slightly.

2. Grind your coffee beans:

• What to do: Grind your fresh coffee beans to the appropriate size for your brewing method. For drip or pour-over, a medium grind, similar to table salt, is usually ideal.
• What “good” looks like: Uniformly sized coffee particles.
• Common mistake: Grinding too fine (like powder) or too coarse (like pebbles). This can lead to over-extraction (bitter) or under-extraction (weak/sour), respectively.

3. Prepare your brewer and filter:

• What to do: Place your filter into the brewer. If using a paper filter, rinse it thoroughly with hot water. Discard the rinse water.
• What “good” looks like: A clean, well-seated filter that is no longer papery to the touch.
• Common mistake: Not rinsing the paper filter, which can impart a papery taste to your coffee.

4. Add coffee grounds:

• What to do: Measure your ground coffee using a scale or a consistent scoop. For a standard 12 oz cup, aim for roughly 18-20 grams of coffee. Place the grounds into the prepared filter.
• What “good” looks like: An even bed of coffee grounds in the filter.
• Common mistake: Not leveling the coffee bed. This can cause water to channel through one area, leading to uneven extraction.

5. Bloom the coffee (for pour-over/manual methods):

• What to do: Pour just enough hot water over the grounds to saturate them evenly (about twice the weight of the coffee). Wait for 30 seconds.
• What “good” looks like: The coffee grounds will swell and release carbon dioxide, creating a bubbly, “blooming” effect.
• Common mistake: Skipping the bloom. This step allows trapped gases to escape, leading to a more even extraction and better flavor.

6. Begin brewing:

• What to do: Slowly and steadily pour the remaining hot water over the coffee grounds. For drip machines, this is automatic. For pour-over, pour in slow, circular motions, starting from the center and working outwards.
• What “good” looks like: A consistent flow of water through the coffee grounds, extracting the liquid into your carafe or mug.
• Common mistake: Pouring too quickly or unevenly. This can cause grounds to overflow or lead to inconsistent extraction.

7. Complete the brew cycle:

• What to do: Allow all the water to pass through the coffee grounds. For drip machines, wait until the brewing cycle is complete.
• What “good” looks like: All the water has dripped through, leaving you with brewed coffee.
• Common mistake: Stopping the brew too early or letting it drip for too long after the main flow has stopped (this can extract bitter compounds).

8. Serve immediately:

• What to do: Remove the spent coffee grounds and filter. Pour your freshly brewed coffee into a mug.
• What “good” looks like: Aromatic, hot coffee ready to be enjoyed.
• Common mistake: Letting the brewed coffee sit on a hot plate for an extended period. This can “cook” the coffee, making it taste bitter and burnt.

Common mistakes (and what happens if you ignore them)

Mistake	What it causes	Fix
Using stale, pre-ground coffee	Weak, dull, and bitter coffee with a lack of aroma.	Grind whole beans just before brewing. Store beans in an airtight container away from light and heat.
Incorrect grind size	Too fine: bitter, over-extracted coffee. Too coarse: weak, sour, under-extracted.	Match grind size to brewer type (fine for espresso, medium for drip, coarse for French press).
Water temperature too hot	Scalds coffee grounds, leading to a burnt, bitter taste.	Let boiled water cool for 30-60 seconds (aim for 195-205°F / 90-96°C).
Water temperature too cool	Insufficient extraction, resulting in weak, sour, and underdeveloped flavor.	Ensure water reaches the target temperature range.
Not rinsing paper filters	A distinct papery, sometimes chemical, taste in the final cup.	Thoroughly rinse paper filters with hot water before adding coffee grounds.
Using tap water with off-flavors	Imparts unpleasant tastes (chlorine, metallic) to the coffee.	Use filtered or bottled water.
Inconsistent coffee-to-water ratio	Coffee is either too weak or too strong and unbalanced.	Use a kitchen scale for accuracy, or at least a consistent measuring scoop.
Dirty brewing equipment	Rancid coffee oils create bitterness and stale flavors.	Clean your brewer, grinder, and carafe regularly after each use.
Letting coffee sit on a hot plate	“Cooks” the coffee, making it taste burnt and bitter.	Brew only what you plan to drink immediately, or use a thermal carafe.
Over-extraction (brewing too long)	Bitter, astringent, and unpleasant taste.	Monitor brew time and stop the brewing process at the appropriate point for your method.
Under-extraction (brewing too short)	Weak, sour, and lacking body.	Ensure adequate contact time between water and coffee for proper extraction.

Decision rules (simple if/then)

• If your coffee tastes bitter, then try a coarser grind because a finer grind can over-extract.
• If your coffee tastes weak and sour, then try a finer grind because a coarser grind can under-extract.
• If your coffee tastes weak, then increase the amount of coffee you use because a low coffee-to-water ratio leads to a dilute brew.
• If your coffee tastes too strong, then decrease the amount of coffee you use because too much coffee can overpower the water.
• If your coffee tastes burnt, then check your water temperature and ensure it’s not too hot because boiling water can scorch the grounds.
• If your coffee tastes bland, then try using fresher beans because stale coffee loses its flavor compounds.
• If you notice a papery taste, then make sure you’re rinsing your paper filters thoroughly because this removes any residual paper taste.
• If your coffee has an unpleasant chemical taste, then check your cleaning routine and descale your machine if necessary because mineral buildup can affect taste.
• If your coffee has an inconsistent flavor, then ensure you’re using a burr grinder for a uniform grind size because blade grinders produce uneven particles.
• If your coffee tastes metallic, then try using filtered water because tap water can sometimes contain metallic impurities.
• If your coffee is too acidic, then try slightly increasing the brew temperature or extending the brew time slightly because this can help extract more of the desirable flavor compounds.

FAQ

Q: How much coffee should I use for a cup?

A: A good starting point is a ratio of 1:15 to 1:18 coffee to water by weight. For example, about 18-20 grams of coffee for 10-12 ounces (300-350 ml) of water. You can adjust this to your preference.

Q: What’s the best way to store coffee beans?

A: Store whole beans in an airtight container in a cool, dark place. Avoid the refrigerator or freezer, as moisture and temperature fluctuations can degrade the beans.

Q: My coffee maker is slow. What could be wrong?

A: Mineral buildup (scale) from hard water is often the culprit. You should descale your coffee maker regularly according to the manufacturer’s instructions.

Q: How often should I clean my coffee maker?

A: It’s best to rinse and wipe down your coffee maker after each use. A more thorough cleaning, including descaling, should be done every 1-3 months, depending on your water quality and usage.

Q: Can I use pre-ground coffee?

A: While you can, it’s not ideal for the best flavor. Pre-ground coffee loses its freshness and aroma much faster than whole beans. If you must use it, try to use it within a week or two of opening.

Q: What is “blooming” in coffee brewing?

A: Blooming is the initial step in some brewing methods where you pour a small amount of hot water over fresh coffee grounds. This allows trapped carbon dioxide to escape, preparing the grounds for more even extraction.

Q: Why does my coffee taste bitter?

A: Bitterness is often caused by over-extraction. This can happen if your grind is too fine, your water is too hot, or you’re brewing for too long.

Q: Why does my coffee taste sour?

A: Sourness usually indicates under-extraction. This can be due to a grind that’s too coarse, water that’s too cool, or not enough contact time between the water and coffee.

What this page does NOT cover (and where to go next)

• Specific brewing methods in detail: While this guide provides general principles, each method (e.g., espresso, cold brew, siphon) has unique techniques.
• Advanced water chemistry: We’ve covered basic water quality, but for enthusiasts, understanding mineral content and its impact can be a next step.
• Detailed coffee bean sourcing and roasting profiles: This guide focuses on brewing, not the origin or roast level of your beans.

Next, you might explore guides specific to your preferred brewing method, learn about different types of coffee roasts, or delve into the science of coffee extraction.