Australian Coffee Guide: Espresso Grind and Dose Basics for Perfect Shots

Whether you’re a budding home barista or simply keen to better understand your daily brew, nailing the espresso grind and dose basics is a crucial step towards consistently delicious shots. Here at Drizzly Cafe, we’re all about sharing warm, knowledgeable advice without the snobbery, so grab your grinder and let’s dive into what makes an espresso truly sing.

What is Espresso Grind Size and Why Does it Matter?

The grind size refers to how fine or coarse your coffee grounds are. For espresso, the grind needs to be quite fine, but not powdery like instant coffee. It’s this fineness that controls how quickly water passes through the coffee puck during extraction.

Think of it like a sieve — too coarse, and water rushes through too fast, under-extracting the coffee and leaving a sour, weak shot. Too fine, and water struggles to pass through, over-extracting and resulting in bitterness and harshness.

Dialling in the right grind size is a balancing act influenced by your specific espresso machine, coffee bean type, roast level, and even humidity.

Defining the Grind Size Spectrum

• Coarse: Large particles, suited for French press or cold brew.
• Medium: For drip coffee makers and pour-over.
• Fine (Espresso): Almost powder-like, essential for espresso machines.
• Extra Fine: Near powder, sometimes used for Turkish coffee.

For espresso, aim for a grind that feels like fine sand but not flour.

Understanding Dose: How Much Coffee to Use

The dose is the weight of coffee grounds you use for each espresso shot. Typically, espresso doses range from 18 to 22 grams for a double shot, but this varies by machine and personal preference.

Getting your dose right impacts the strength, balance, and flavour of your coffee. Too little coffee can make the shot weak and watery; too much can clog your machine or make the shot overly strong and bitter.

Using a kitchen scale is highly recommended for accuracy — eyeballing doses often leads to inconsistent results.

Practical Dose Guidelines

• Standard single espresso: 7–9 grams
• Standard double espresso: 18–22 grams
• Adjust dose slightly depending on your coffee blend and desired strength

For example, Drizzly Cafe’s Velvet Reserve – Decadent Dark Chocolate & Caramel Symphony recommends a dose of 20–21 grams for optimal extraction.

Practical Steps to Dial in Your Espresso Grind and Dose

1. Start with a baseline: Set your grinder to a fine espresso setting and weigh out a dose around 18–20 grams.
2. Pull a shot: Aim for a 25–30 ml extraction over 25–30 seconds; this timing is a widely accepted standard for balanced espresso.
3. Taste and observe: If it tastes sour or weak, your grind may be too coarse or your dose too low. If it’s bitter or harsh, your grind could be too fine or dose too high.
4. Adjust grind size: Make small adjustments—one notch finer or coarser—and pull another shot.
5. Adjust dose: If tweaking grind doesn’t solve issues, try increasing or decreasing your dose by 0.5–1 gram increments.
6. Repeat: Espresso dialling is iterative; keep tasting and adjusting until you find your sweet spot.

Common Mistakes and Troubleshooting Tips

• Not weighing coffee: Without a scale, it’s tough to maintain consistency. Invest in a digital scale for best results.
• Grinder quality: Blade grinders produce uneven grounds, leading to poor extraction. Burr grinders are preferred for espresso.
• Ignoring tamping pressure: Tamp your grounds evenly with about 15–20 kg of pressure to create a uniform puck.
• Water temperature and pressure: These also affect extraction, so ensure your machine is well-maintained.
• Using stale coffee: Freshly roasted beans, like Drizzly’s Native Ground – Authentic Nutty Caramel & Citrus Essence, enhance extraction and flavour complexity.

Troubleshooting Guide

IssuePossible CauseSolution

Sour or weak espressoGrind too coarse or under-dosingGrind finer; increase dose slightly
Bitter or burnt tasteGrind too fine or over-dosingCoarsen grind; reduce dose
Slow extraction (over 30 seconds)Grind too fine or too much coffeeCoarsen grind; reduce dose
Fast extraction (under 20 seconds)Grind too coarse or too little coffeeGrind finer; increase dose

Summary: Key Takeaways for Espresso Success

• Grind size controls extraction speed – aim for fine but not powdery.
• Dose affects strength and balance – typically 18–22 grams for doubles.
• Use a scale for consistent dosing.
• Adjust grind and dose iteratively based on taste and extraction time.
• Keep your coffee fresh and your equipment clean for best results.

FAQ

• Q: How often should I adjust my grind size?A: Grind adjustments should be made whenever you change coffee beans, notice changes in extraction time, or taste off-flavours. Environmental factors like humidity can also affect grind performance.
• Q: Can I use the same dose for all espresso blends?A: Different blends may require slight dose changes to highlight their flavour profiles. Start with a standard dose and tweak based on taste.
• Q: What if my espresso tastes bitter even after adjusting grind and dose?A: Check your water temperature and ensure your machine is clean. Also, confirm you’re tamping evenly without over-compressing the grounds.
• Q: Is it better to use a single or double shot for home espresso?A: Double shots (18–22 grams) are standard for home espresso machines, offering more flavour and balance. Singles can work but are less forgiving.
• Q: How fresh should my coffee beans be for espresso?A: Ideally, use beans within 2–4 weeks of roasting. Fresh beans like Native Ground provide more vibrant flavour and crema.