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Best coffee beans for Breville machines?
Best Coffee Beans for Espresso Machines Australia 2026
Breville or alike coffee machines don't need special coffee.
They need:
- Fresh coffee
- Correct grind size
- Consistent dosing
- Coffee that suits your taste preferences
That's the real answer. Even Breville themselves focus on freshness and quality beans rather than recommending a specific coffee.
If You Drink Milk Coffee
If you mainly drink flat whites, lattes and cappuccinos, we'd recommend Murray Street Blend.
Murray was designed to work beautifully with milk. The chocolate, roasted hazelnut and cocoa notes carry through the milk, creating the rich, cafe-style flavour most Australians are looking for.
It's also forgiving to dial in, making it an excellent option for home brewers.
If You Drink Flat Whites
Our pick is Gordon Street Blend.
The smooth body and balanced flavour profile pair perfectly with the smaller milk volume of a flat white.
You'll still taste the coffee while enjoying all the sweetness that milk brings to the cup.
If You Drink Black Coffee
For long blacks and straight espresso, we'd usually recommend either:
- Pacific Drive Blend
- A single origin coffee
Pacific Drive offers more fruit and brightness, while single origins allow you to experience the unique flavours of a particular farm or region.
If You're New To Home Espresso
Start with Murray Street Blend.
Most people moving from supermarket coffee to specialty coffee are looking for something familiar, reliable and easy to enjoy.
Murray does exactly that.
It's chocolatey, full-bodied and forgiving while you're learning how to use your Breville machine.
What Matters More Than The Coffee?
Honestly?
Your grinder.
If you own a Breville machine and your coffee doesn't taste right, the problem is usually one of these:
- Grind size.
- Coffee freshness.
- Dose consistency.
- Water quality.
Not the beans.
A great Breville machine with fresh coffee and a good grinder will outperform an expensive machine using stale coffee every single time. Breville's own guidance stresses fresh beans and proper grind adjustment as critical to espresso quality.
Our Recommendation
Best Overall: Murray Street Blend
Best For Flat Whites: Gordon Street Blend
Best For Black Coffee: Pacific Drive Blend
Best For Coffee Geeks: Single Origin Coffees
The best coffee for your Breville machine isn't about the machine.
It's about finding the coffee you genuinely look forward to drinking every morning.
What grind should I use?
This is probably the most common question we get, and unfortunately, there's no magic grind number.
Every grinder is different. Even if two people own the exact same grinder, they're unlikely to be using the same grind setting. That's because coffee is constantly changing. Different beans, roast dates, humidity, burr wear and even the weather can all influence how your coffee extracts.
Instead of chasing someone else's grind setting, focus on building a repeatable process.
Always weigh your coffee using scales and keep everything else consistent. Then simply adjust your grind based on how your espresso is flowing.
If your shot runs too quickly, make the grind finer.
If your shot runs too slowly, make the grind coarser.
For most home espresso setups, aiming for a shot time of around 30 seconds is a great place to start. From there, let taste guide you.
How much coffee should I use?
The amount of coffee you use depends on the size of your basket (the metal basket inside your portafilter), not your coffee machine.
Some common basket sizes include:
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51 mm - common on entry-level home machines.
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54 mm - found on machines like the Breville Barista Express, Bambino and Barista Pro.
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58 mm - used on most commercial espresso machines and many premium home machines.
As a general guide:
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18 g is the standard double basket and is what we recommend for most people.
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20-22 g is often used for larger baskets or when chasing a fuller-bodied espresso.
Rather than filling the basket by eye, weigh your dose every time. Consistency starts here.
What water temperature is best?
For most espresso machines, the ideal brewing temperature sits between 90°C and 96°C, with around 93°C being the sweet spot for most coffees.
Different roast levels respond slightly differently:
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Light roasts: 93–95°C
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Medium roasts: 91–93°C
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Dark roasts: 90–91°C
Water that's too cool can leave your coffee tasting sour and under-extracted.
Water that's too hot can create excessive bitterness and harsh flavours.
If your machine doesn't allow temperature adjustment, don't stress. Focus on consistency first. Temperature is only one piece of the puzzle.
Why is my coffee bitter?
Bitterness usually means you're extracting too much from the coffee.
Some common causes include:
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Grinding too fine.
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Brewing for too long.
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Water that's too hot.
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Using very dark roasted coffee.
If your coffee tastes dry, harsh or leaves an unpleasant bitterness on your tongue, try making your grind slightly coarser or shortening your shot.
Remember, some bitterness is completely normal. You're aiming for balance between sweetness, acidity and bitterness.
Why is my coffee sour?
Sour coffee is almost always a sign of under-extraction.
The coffee hasn't had enough time for the water to dissolve the sweet flavours, leaving mostly bright acids behind.
This can happen when:
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Your grind is too coarse.
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Your shot runs too quickly.
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Your water temperature is too low.
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Your coffee is extremely fresh or hasn't rested long enough.
If your espresso tastes sharp or lemony rather than sweet, try making your grind slightly finer and slowing the shot down.
Why is my espresso running too fast?
If your espresso pours in less than about 25 seconds, it's usually because the water is flowing through the coffee too easily.
The most common causes are:
-
Your grind is too coarse.
-
You're using too little coffee.
-
Your coffee isn't distributed evenly.
The first thing we'd adjust is the grind. Make it a little finer and try again.
Only change one variable at a time so you know exactly what fixed the problem.
Why is my espresso running too slowly?
If your shot is taking much longer than 30–35 seconds, the water is struggling to move through the coffee.
This is usually because:
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Your grind is too fine.
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You're using too much coffee.
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The coffee has been packed too tightly.
Start by making your grind slightly coarser and see how the shot changes.
Again, make one adjustment at a time.
Why has my recipe suddenly changed?
Coffee is a natural product, so it changes over time.
A recipe that worked perfectly last week might need adjusting today.
Things that affect extraction include:
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Coffee ageing after roasting.
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Humidity.
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Temperature.
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New bags of coffee.
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Burr wear.
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Changes in water.
This is completely normal.
At Moon Boy, we adjust our grinders throughout the day to keep our coffee tasting consistent. Home baristas should probably expect to make small adjustments too.
Should I weigh my coffee?
Absolutely.
If we could only give one piece of advice to home baristas, this would be it.
Scales remove the guesswork.
By weighing every dose, you'll:
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Build consistency.
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Learn what a good recipe looks like.
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Diagnose problems much faster.
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Waste less coffee.
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Make meaningful adjustments instead of guessing.
Coffee is all about controlling variables, and scales are the easiest way to do that.
Does water quality matter?
More than most people realise.
Coffee is around 98% water, so poor-quality water will always affect the flavour in your cup.
It also affects the lifespan of your machine.
Hard water creates limescale, which builds up inside boilers, pipes and valves over time. Eventually this can reduce performance and lead to expensive repairs.
Whenever possible, use filtered water that's suitable for espresso machines. Your coffee will taste better and your machine will thank you.
How often should I clean my grinder?
We're probably a little obsessive about cleaning grinders at Moon Boy.
In the roastery and cafe, they're cleaned every single day.
For home users, you won't need to clean them quite that often, but regular cleaning still makes a huge difference.
As a guide:
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Brush away loose coffee every few days.
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Deep clean every month.
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Remove old coffee oils whenever you notice them building up.
Old coffee trapped inside your grinder quickly becomes stale and can affect the flavour of every coffee you make afterwards.
How often should I clean my espresso machine?
Cleaning your machine is just as important as buying good coffee.
A simple routine makes all the difference.
Every day
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Flush the group head.
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Wipe the steam wand immediately after use.
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Clean the basket and portafilter.
Every week
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Backflush the machine (if your machine allows it).
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Wash baskets and portafilters thoroughly.
Every month
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Deep clean the shower screen and group head.
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Check for coffee oil build-up.
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Descale if your water requires it.
A clean machine always makes better coffee and will last you for decades to come.
Can I use tap water?
You can...
But we wouldn't recommend it.
Depending on where you live, tap water can contain minerals that create limescale inside your machine and change the flavour of your coffee.
Instead, we'd recommend using filtered water that's suitable for espresso machines.
Avoid distilled water as well. It doesn't contain the minerals needed for proper extraction and can even be harmful to some machines.
How long should an espresso shot take?
Around 27-31 seconds is where we start with all of our Moon Boy blends.
But don't get too caught up chasing a specific number.
Shot time is a guide - not a rule.
If your espresso tastes incredible at 26 seconds, that's the right recipe.
If it tastes better at 33 seconds, that's fine too.
Coffee doesn't care about rules.
Taste always wins.
Why does my coffee taste better at cafes?
Because making consistently great coffee is our profession.
Most specialty cafes have spent years refining their recipes, investing in quality equipment and learning how coffee behaves.
They're using quality roasted coffee, filtered water, commercial grinders, carefully maintained espresso machines and they're constantly adjusting their grinders throughout the day to keep every shot tasting the same.
There are dozens of small things happening behind the scenes that all add up to a better cup.
But there's another reason too.
Sometimes coffee simply tastes better when someone else makes it for you.