Espresso preparation becomes easier to compare when the recipe is expressed by weight. Dose is the dry coffee in the basket; yield is the beverage collected in the cup. A 1:2 dose-to-yield ratio would turn 18 grams of coffee into a target of 36 grams of espresso. That relationship is a common starting point, not a definition that every successful shot must satisfy.
Use a basket suited to the chosen dose and follow the machine's heating and operating instructions. Distribute the grounds evenly, tamp level and keep the basket rim clean before fitting the portafilter. Measure the yield and record the extraction time using the same timing convention for each shot. A target around 25–30 seconds can be useful for an initial recipe, but elapsed time alone cannot establish whether the coffee tastes balanced.
Change one factor deliberately, such as grind while dose and yield remain fixed, then assess the result. Crema thickness is not a reliable standalone score, and more tamping force is not a universal repair for uneven flow. Different roasts and coffees can call for different recipes. This guide explains a reproducible dialling-in process without claiming that one pressure, temperature or roast suits every espresso.
The conversation
A good question can make a better brew.