
September 26, 2017 8 min read
Learning how to make espresso at home comes down to controlling a few important variables: fresh coffee, grind size, dose, yield, water temperature and extraction time. Once those variables are consistent, you can adjust them to produce an espresso that tastes balanced rather than sour, weak or bitter.
A good starting point for a double espresso is 18–20 grams of finely ground coffee, brewed at approximately 195–205°F, with a target brew ratio near 1:2. That means 18 grams of ground coffee would produce roughly 36 grams of espresso. Aim for an extraction time of approximately 25–30 seconds, then adjust according to taste.
Those numbers are a starting point, not an absolute formula. Different coffees, grinders and espresso machines may require slightly different settings.
For traditional espresso, you need an espresso machine capable of brewing finely ground coffee under pressure. A few additional tools make it much easier to produce consistent results.
Temperature stability and consistent brewing pressure are more important than unnecessary features. Make sure your machine is fully heated before brewing, including the group head and portafilter.
A good grinder is one of the most important pieces of espresso equipment.
Use a burr grinder rather than a blade grinder. A burr grinder produces a more consistent particle size and allows you to make the small grind adjustments needed to dial in an espresso shot.
A digital scale allows you to measure both the coffee going into the portafilter and the espresso coming out.
Measuring by weight is much more consistent than relying on tablespoons or simply watching the volume in the cup.
Use a tamper that properly fits your portafilter basket. The goal is to create a level, evenly compressed bed of coffee so water can move through the grounds as uniformly as possible.
Fresh, properly roasted coffee provides the foundation for good espresso.
Medium, medium-dark and dark roast coffees can all work for espresso, but they produce different flavor profiles. If you prefer the rich, full-bodied character associated with traditional espresso, start with a coffee developed to produce sweetness, body and balance under espresso extraction.
Explore Weaver's espresso coffee beans to compare coffees for making espresso at home.
Once your machine is heated and your equipment is ready, follow this basic espresso recipe.
Start with approximately 18–20 grams of coffee for a double espresso, provided that dose is appropriate for your portafilter basket.
Using a scale makes it easier to repeat a good shot and diagnose one that doesn't taste right.
Grind the coffee immediately before brewing.
Espresso requires a fine grind, but there is no single grind setting that works for every coffee and machine. The grind controls how quickly water passes through the coffee, so small adjustments can make a significant difference.
If the espresso runs too quickly and tastes thin or sour, grind finer.
If it runs very slowly and tastes harsh or bitter, grind coarser.
Place the ground coffee in the portafilter and distribute it as evenly as possible before tamping.
Uneven distribution can encourage water to find an easier path through part of the coffee bed, leading to uneven extraction.
Tamp the coffee firmly and, most importantly, levelly.
You don't need to keep pressing harder once the coffee is evenly compressed. Consistency and a level coffee bed matter more than excessive force.
Lock the portafilter into the machine and begin brewing.
For an 18-gram dose, a useful starting target is approximately 36 grams of espresso, giving you a brew ratio of about 1:2.
Aim initially for an extraction time around 25–30 seconds.
Then taste the espresso rather than treating the numbers as rigid rules.
This is where good home espresso is made.
If the espresso tastes sour, sharp or thin, it may be under-extracted. Try grinding slightly finer or allowing a greater extraction.
If it tastes overly bitter, dry or harsh, it may be over-extracted. Try grinding slightly coarser or reducing the extraction.
Make one adjustment at a time. Changing the dose, grind and yield simultaneously makes it difficult to determine what actually improved—or hurt—the espresso.
Understanding the relationship between dose and yield makes espresso much easier to reproduce.
Dose is the weight of dry ground coffee placed in the portafilter.
Yield is the weight of the brewed espresso in the cup.
Brew ratio describes the relationship between the two.
For example:
18 grams coffee in → 36 grams espresso out = approximately a 1:2 brew ratio.
This is a useful starting point for espresso, but it isn't a universal rule. Different coffees may taste better with slightly shorter or longer ratios.
The goal is not to hit a number simply because a recipe says so. The goal is to use measurements to create consistency and then adjust according to flavor.
Espresso requires a fine grind because water passes through the coffee quickly under pressure.
But “fine” is only a starting description. The correct grind is the one that produces the desired flow rate and flavor with your particular coffee, dose and machine.
Your grinder therefore becomes one of your primary adjustment tools.
Espresso running too fast? Grind finer.
Espresso running too slowly? Grind coarser.
Make small adjustments. Espresso is sensitive enough that a minor grinder change can noticeably affect extraction.
A useful starting range for espresso brewing is approximately 195–205°F.
Temperature affects extraction, but most home baristas should first concentrate on maintaining a consistent dose, grind, yield and extraction process.
If your espresso machine controls temperature automatically, allow it to heat fully before brewing. Consistency is more valuable than repeatedly changing several brewing variables at once.
Approximately 25–30 seconds is a useful starting point for dialing in espresso, but extraction time should not be treated as the sole definition of a good shot.
Two espresso shots can finish in the same amount of time and still taste very different.
Use extraction time together with dose, yield and taste.
If you consistently measure all three, troubleshooting espresso becomes much easier.
Traditional espresso requires pressure, so brewing methods such as a moka pot, AeroPress or French press do not produce true espresso in the same way an espresso machine does.
However, you can use a moka pot to make concentrated coffee that works well in many espresso-style drinks.
A moka pot brews concentrated coffee by using steam pressure to move hot water through ground coffee. It produces a strong, full-bodied cup, but it operates differently from an espresso machine.
Fill the lower chamber with water according to the manufacturer's instructions, keeping the water level below the safety valve unless your particular moka pot specifies otherwise.
Fill the filter basket with coffee and level the grounds.
Use a grind that is finer than typical drip coffee but generally coarser than a traditional espresso grind.
Do not tamp the coffee in a moka pot.
Insert the basket and securely screw the upper and lower chambers together.
Make sure the rim and gasket area are free of loose coffee grounds so the pot can seal correctly.
Place the moka pot over low to medium heat.
As pressure builds, brewed coffee will begin flowing into the upper chamber.
When the flow begins to lighten and you hear the characteristic sputtering near the end of brewing, remove the moka pot from the heat.
You can drink moka pot coffee on its own or use it as the concentrated coffee base for a homemade latte, mocha or other espresso-style drink.
Once you understand the basic recipe, consistency becomes more important than constantly changing your technique.
Use freshly roasted coffee. Grind immediately before brewing. Weigh your dose and yield. Keep your equipment clean and fully heated. Change only one brewing variable at a time when dialing in your espresso.
Most importantly, taste every adjustment.
The numbers help you reproduce a shot, but flavor tells you whether the shot is actually good.
Sour or sharply acidic espresso can indicate under-extraction. Try grinding slightly finer and evaluate the resulting extraction and flavor.
Excessive bitterness or a dry, harsh finish can indicate over-extraction. Try grinding slightly coarser or reducing the yield.
If water moves through the coffee too quickly, the grind may be too coarse. Adjust the grinder slightly finer and try again.
If the shot barely flows or takes excessively long to reach your target yield, the grind may be too fine. Adjust slightly coarser.
Inconsistency often comes from changing doses, uneven coffee distribution, varying yields or inconsistent grind settings. Weighing your coffee and espresso and following the same preparation process each time makes problems much easier to identify.
There isn't one roast level required for espresso. Espresso is a brewing method, and different coffees can be brewed as espresso.
For a balanced, approachable home espresso, medium and medium-dark roasts are excellent places to start. If you prefer a deeper, bolder roast character—especially for milk-based drinks—a dark roast may be a better fit.
Explore Weaver's espresso coffee beans, medium-dark roast coffee and dark roast coffee to find the flavor profile you prefer.
A 1:2 coffee-to-espresso ratio is a useful starting point. For example, 18 grams of ground coffee would produce approximately 36 grams of brewed espresso. Adjust the ratio according to the coffee and your taste.
Approximately 18–20 grams is a common starting range for a double espresso, but the appropriate dose depends on the size of your portafilter basket and your equipment.
Espresso requires a fine grind. Rather than relying on a visual comparison alone, adjust the grind according to extraction: grind finer if the espresso flows too quickly and coarser if it flows too slowly.
Yes. Espresso is a brewing method rather than a specific type of coffee bean. However, roast profile and coffee selection affect sweetness, acidity, body and how the espresso tastes on its own or with milk.
A moka pot makes strong, concentrated coffee, but it does not produce traditional espresso because it uses a different brewing process and pressure level. It can still make an excellent concentrated base for homemade coffee drinks.
Espresso is the foundation for lattes, cappuccinos, Americanos, macchiatos, mochas and many other drinks. Once you've dialed in your espresso, try our 6 Espresso Recipes You Can Make at Home or explore our Espresso Drink Recipes guide.
Making great espresso at home is less about finding one perfect recipe and more about learning to control the variables.
Start with fresh coffee, a consistent dose, a fine grind and a roughly 1:2 brew ratio. Measure the result, taste it and make one adjustment at a time.
Once you can consistently produce an espresso you enjoy, you have the foundation for dozens of café-style drinks at home.
Browse Weaver's espresso coffee beans to find coffee for your home espresso setup.
Sign up to get the latest on sales, new releases and more …