Shot recipe
Set your espresso target.
Enter the dry coffee in your basket and choose a ratio. Get the drink weight to target. One recipe does not fit every coffee.
Example: 18g of coffee in at a 1:2 ratio gives 36g in the cup. At 30 seconds, that is an average flow of 1.2g per second.
THE MATH
How we got your number
Target espresso out (g) = dry coffee in (g) × brew ratio. Average flow (g/sec) = target espresso out ÷ target shot time.
WHAT WE COUNTED
What we counted
- Espresso out means the drink weight in the cup. The output uses grams, not liquid volume in milliliters.
- The ratio is descriptive, not a guarantee of good extraction; taste remains the final test.
- Average flow means the average amount that flows each second across the whole shot. It does not describe how flow changes during pre-infusion or extraction.
This estimate uses the formula and inputs shown above.
USE THIS NUMBER
What your number means
We use only the values you enter and the formula above. We do not add retailer prices or promise savings, extraction quality, or equipment life.
COMMON QUESTIONS
Frequently asked questions
What does a 1:2 espresso ratio mean?
The drink weight is twice the dry coffee weight. For example, 18 grams of coffee in the basket gives a target of 36 grams in the cup.
Should I measure the drink in grams or milliliters?
Use grams when you set up a shot. Crema changes the drink's visible volume, but a scale gives a repeatable weight. This calculator does not convert the result to milliliters.
Does shot time choose the right ratio?
No. The ratio links dry coffee to drink weight. Time, taste, flow, grind setting, and puck preparation help you check the shot. The time field gives the average amount that flows each second, but it does not change the target weight.