When I started using my Breville (or Sage) espresso machine at home, I quickly realized that pulling a single espresso shot required more than simply using half the coffee for a double shot. Equipped with separate filter baskets for single and double shots, I found pulling a double shot relatively straightforward. However, dialing in the ideal single shot was more of an art.
Key Differences Between Single and Double Shot Baskets
One of the first distinctions I noticed was the shape difference between the single and double baskets. Unlike the flat-bottomed double basket, the single basket has a tapered, conical design. While this may seem minor, it heavily influences the water flow through the coffee grounds. The narrow base in the single basket often leads to uneven extraction, as water tends to flow faster through the center, causing channeling. This uneven flow can result in a shot where some portions are under-extracted and others over-extracted, making it challenging to achieve a balanced, full-bodied flavor.
When comparing single shots with a double shot split into two cups, the double shot consistently provided a richer flavor and a better finish.
Refining Your Technique for Single Shots
Determined to master the single shot, I experimented and discovered a few techniques that significantly improved my results:
Increase Your Coffee Dose
A key adjustment involved modifying the coffee dose. My initial approach was to use half of the typical 18 grams used for a double shot, which led to quick, underwhelming shots. Upping the dose to around 10 grams resulted in better extraction timing and an improved flavor profile. This small change brought more depth and richness to my single shots.
Adjust Grind Size for Optimal Extraction
Fine-tuning the grind size was crucial. My early single-shot attempts brewed too quickly, indicating a need for a finer grind. Adjusting my grinder a few notches finer made a substantial difference in shot timing and flavor. A finer grind slows the water flow, promoting even extraction and a better-balanced espresso.
Use a Scale and Maintain a 1:2 Brew Ratio
Using a scale proved essential for precision in both coffee dose and output weight. I aimed for a 1:2 brew ratio, meaning that for every gram of coffee, I pulled twice the weight in liquid espresso. With 10 grams of coffee, I aimed for about 20 grams of espresso. This ratio helped avoid weak or overly diluted shots, delivering a consistently balanced and concentrated espresso.
Remember to Purge the Grinder
Switching between single and double baskets also required me to be mindful of my grinder. After adjusting the grind size for a single shot, I purged the grinder of any residual grounds that could compromise shot consistency. This step was especially helpful when alternating between basket sizes, as leftover grounds can affect grind consistency and shot balance.
Navigating the Challenges and Rewards of the Single Basket
Using the single basket presented more challenges than the double, but it proved worth the effort. The process required greater precision and patience, but the result was a clean, concentrated shot ideal for milk-based drinks like cappuccinos or lattes, where a balanced coffee flavor complements the milk.
If you prefer a lighter espresso for milk drinks or enjoy a more delicate espresso profile, experimenting with these adjustments is worthwhile. Remember that each machine and palate is unique, so feel free to tweak grind sizes, doses, and extraction times to find your ideal balance.
Final Thoughts
Mastering the single basket with a Breville or Sage espresso machine can be challenging due to the basket's conical shape, which often necessitates adjustments in dose and grind size to achieve even extraction. With a bit of patience and experimentation, however, it’s possible to pull a balanced, delicious single shot. Perfecting the single basket has not only improved my espresso skills but also elevated my overall barista experience.