If you want the short answer: the best espresso ratio for beginners is 1:2. Start with 18g of coffee in, aim for 36g of espresso out, and use 25–30 seconds as your first time target.
The beginner espresso recipe
Stop the shot when the scale reaches 36g, then taste it. If it is sour or runs too quickly, grind finer. If it is bitter or runs too slowly, grind coarser.
An easier starting point
Use a coffee built to dial in consistently.
Second Chance is NOVARO's espresso-first blend, built for consistent straight shots and milk drinks.
What does 18g in and 36g out mean?
Espresso ratio compares the dry coffee in your basket—the dose—with the liquid espresso in your cup—the yield. An 18g dose and 36g yield is a 1:2 espresso ratio because the finished espresso weighs twice as much as the ground coffee.
The 1:2 ratio is a useful starting point because it tends to balance body, sweetness, and clarity. It is not a rule you can never change; it is a repeatable baseline that makes your next adjustment easier to understand.
How many grams of coffee should you use for espresso?
For a double espresso, 18g is a common dose, but your basket determines the right amount. Use the dose your basket is designed to hold, weigh it instead of guessing by volume, and begin with twice that weight in the cup.
| Basket dose | Starting espresso yield | Ratio |
|---|---|---|
| 16g | 32g out | 1:2 |
| 18g | 36g out | 1:2 |
| 20g | 40g out | 1:2 |
Do not force 18g into a smaller basket or underfill a larger one. The ratio matters more than using one exact dose.
How long should 18g in and 36g out take?
For an espresso with 18g in and 36g out, 25–30 seconds is a practical beginner target. Start timing when the pump starts, unless your machine's instructions specify otherwise.
Time is a diagnostic tool, not the final goal. A 36g yield in 15 seconds usually means water moved through the coffee too easily. A 36g yield in 40 seconds usually means the puck offered too much resistance. Taste decides whether the shot is actually right.
How to dial in espresso at home
- Keep the dose fixed at 18g.
- Stop the shot at 36g out.
- Taste the espresso.
- Adjust only the grind for the next shot.
Changing one variable at a time shows you what improved the result. Small grind adjustments can make a large difference, so move gradually.
| What happens | What it usually means | What to try next |
|---|---|---|
| Sour, sharp, or thin | Under-extracted | Grind a little finer |
| Bitter, harsh, or drying | Over-extracted | Grind a little coarser |
| 36g out much faster than 25 seconds | Too little resistance | Grind finer; check puck preparation |
| 36g out much slower than 30 seconds | Too much resistance | Grind coarser |
| Good time, but flavor is off | Ratio, coffee, or preparation needs work | Let taste guide a small adjustment |
Keep dose and yield steady while you learn. For deeper troubleshooting, see Why Is My Espresso Sour? or Why Is My Espresso Bitter?.
Why coffee freshness and grinding matter
Fresh whole-bean coffee gives you control over grind size, which is the main tool used to slow down or speed up a shot. Pre-ground coffee may run too quickly or slowly with no practical way to correct it.
Coffee can also be difficult to dial in immediately after roasting because it is still releasing gas. Learn more in How Long Should Coffee Rest After Roasting?, Whole Bean vs Ground Coffee, and How to Grind Coffee Beans.
The best espresso beans for beginners
A balanced espresso blend is often easier to dial in than a delicate single origin because its flavor remains clearer across small changes in grind, time, and milk.
Second Chance is our espresso-first blend. It is built for body, consistency, straight shots, and milk drinks, giving new home baristas a more forgiving place to learn.
Espresso ratio FAQ
What is the perfect espresso ratio?
There is no single perfect espresso ratio for every coffee, but 1:2 is the best starting point for most beginners. For an 18g dose, that means 36g of espresso out.
Is 18g of coffee a single or double espresso?
An 18g dose is generally considered a modern double espresso. Basket sizes vary, so follow the capacity recommended for your machine.
Should 18g of coffee make 36g of espresso?
Yes, 18g in and 36g out creates a 1:2 ratio. Treat it as a starting recipe, then adjust by taste.
What should I change first when dialing in espresso?
Change the grind first. Keep your coffee dose and target yield fixed so you can tell whether the adjustment helped.
If you remember one formula, make it 18g in, 36g out, 25–30 seconds—then taste and adjust the grind.
Dial it in
Start with a coffee built to make espresso easier to read.
Second Chance is designed for espresso, milk drinks, and stronger brews, so it gives you a more forgiving place to learn ratio, grind, and timing together.