Fresh Beans

Start With Quality Coffee

Dial In

Adjust Grind for Flow

1:2 Guide

Useful Espresso Starting Point

9 Bar

Target Extraction Pressure

HOME BARISTA GUIDE

Start Brewing Better Espresso With Your Breville

As a home barista, you can create espresso that matches your own taste, but getting consistent results takes practice. Coffee freshness, grind size, dose, tamping and extraction all work together.
This guide covers the core techniques BrewRatio recommends for new home baristas using a Breville espresso machine, with practical starting points that you can adjust as you gain experience.

Start With Freshly Roasted Coffee

The quality of your espresso starts with the coffee itself. Older or stale beans generally produce flatter aroma and make consistent extraction harder to achieve.
As a practical starting point, BrewRatio recommends using freshly roasted coffee beans and consuming them within roughly 4–21 days from the roast date. Pre-ground coffee is less suitable for espresso because it loses aroma and freshness quickly after grinding.
Store beans in an airtight container in a cool, dark place and grind only what you need for each shot.
Shop fresh coffee beans →

Adjust Grind Size for the Coffee You Are Using

Different coffees need different grind settings. There is no single grinder setting that works perfectly for every bean, so dial in each coffee and keep a note of settings that work well.

Too Fine

Slow, Bitter Extraction

If the grind is too fine, water may struggle to pass through the puck. This can result in an overly slow extraction and a darker, more bitter cup.

Too Coarse

Fast, Weak Extraction

If the grind is too coarse, water can flow through too quickly, often producing a thinner and less developed espresso.

Use Dose and Yield as Your Starting Point

Brew ratio compares the weight of ground coffee in the portafilter with the amount of espresso produced. Using a consistent dose and yield makes it easier to understand what changed when you adjust grind size or extraction time.

A general starting guide for Breville espresso machines:

Single ShotAbout 10g coffee → around 20ml espresso
Double ShotAbout 18g coffee → around 36ml espresso
Extraction TimeAbout 25–35 seconds as a starting range

Once your shots are consistent, adjust the ratio and grind to suit the coffee and your own taste.

Tamp Firmly and Consistently

A firm, repeatable tamp helps create an even coffee bed so water does not simply find weak paths through loose grounds.
The goal is consistency rather than chasing one exact tamping force. Use the same preparation method from shot to shot so grind size and brew ratio are easier to evaluate.

Keep the Coffee Bed Level

An uneven tamp can encourage channeling. Aim for a flat coffee bed before extraction so water passes through the puck more evenly.

Level Before Tamping

Distribute the coffee as evenly as possible before applying the final tamp.

Use the Right Tool

If the supplied tamper is difficult to use consistently, a properly sized tamper or levelling tool can make preparation easier.

View Tamper & Leveller

Use the Pressure Gauge as a Diagnostic Tool

Breville espresso machine extraction pressure gauge

Extraction pressure is influenced by the coffee, grind size, dose and puck preparation. On Breville machines fitted with a pressure gauge, the gauge can help you understand whether the puck is providing enough resistance during extraction.
For espresso, approximately 9 bar is a widely used target pressure. Treat the gauge as one part of the picture rather than the only measure of a good shot—taste, flow, dose, yield and extraction time still matter.
Learn about BrewRatio’s 9 Bar Extraction Mod →

What to Adjust When Your Espresso Tastes Wrong

Sour / Fast

Try a Finer Grind

If the shot runs too quickly and tastes sour or thin, a finer grind is a sensible first adjustment.

Bitter / Slow

Try a Coarser Grind

If the shot runs too slowly and tastes overly bitter, move slightly coarser and test again.

Inconsistent

Check Dose and Tamping

Use a repeatable dose, keep the puck level and tamp consistently so you are changing one variable at a time.

Espresso extraction guide showing coffee puck and crema

Fresh coffee, the right grind, a consistent dose and even puck preparation all contribute to a better espresso shot.
Keep the filter basket clean after each extraction. Dispose of used coffee grounds in household waste or a knock box rather than washing them down the sink.
View BrewRatio Knock Box →

ADVANCED TIP

Adjust the Upper Burr When the Normal Grind Range Is Not Enough

If you have already adjusted the external grind setting but still cannot grind fine enough for a suitable extraction, some Breville grinders allow the upper burr position to be adjusted to extend the available grind range.

Breville grinder upper burr adjustment setting

The source guide notes a factory upper-burr setting of 6, with lower numbers moving toward a finer range and higher numbers toward a coarser range.
Make only one adjustment at a time. After changing the upper burr, continue dialing in with the normal grind-size control until you reach a suitable extraction for the coffee you are using.

Important

Upper-burr adjustment applies only to Breville grinders that are designed with an adjustable upper burr. Follow the instructions for your exact grinder or espresso-machine model.

Barista With Breville: Home Espresso Guide