Prepare the portafilter

Remove portafilter. Clean and dry the basket.
Purge the group head by allowing hot water to flow through. This clears the screen of any built-up coffee grounds.
Place the portafilter on the scale and tare the scale to zero, then place the portafilter under the grinder to receive the coffee.

Grind, dose and tamp

Grind enough coffee to fill your portafilter basket and then check the weight on the scales.
Make sure coffee is distributed evenly in the basket and use a tamper to press down the bed of coffee.
There should be 3-4mm of space at the top of the portafilter after tamping.

Brew

Insert the portafilter into the espresso machine.
Place scales and cup below the portafilter, tare to zero and immediately start to brew.
Stop the shot when the espresso is roughly double the weight of the ground coffee in the basket.

Serve

Serve your coffee immediately.
Remove portafilter and knock out spent grounds.
Pop the clean portafilter back into the machine to maintain its temperature.