---
title: How to adjust the programmed volumetric output of your Ascaso Home Espresso Machine
description: Walkthrough process for changing the programmed volumetric settings on all Ascaso Home Espresso Machines.
---

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# How to adjust the programmed volumetric output of your Ascaso Home Espresso Machine

## Process for changing the PID volumetric programming on an Ascaso Home Espresso Machine

**How do I program a shot dose?**

**1)** First, prepare your puck using the same grind size, input dose, and tamp that you will be doing for subsequent shots.

**2)** Then put the portafilter in the grouphead and engage the brew switch, holding up for the total amount of time it takes to get the correct volume of water for your shot. Once the shot is  
complete, quickly disengage, then quickly re-engage the switch up once more to "lock-in" the shot dose.

**3)** To program the "2 coffees" dose, perform the same steps but hold the switch "down" instead of up. You can always pull a shot with a continuous flow (sometimes called a manual shot) by engaging the switch up OR down for the desired amount of time. IMPORTANT NOTE: When you program your shot dose, the flowmeter is saving the volume of water being dispensed, not the amount of time. If any of your input factors are slightly different (grind size, input dose, tamp) from the way you prepared the espresso puck during the programming step, the machine will dispense the pre-programmed amount of water and will display more or less time has elapsed.

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