When I first started using my Breville (or Sage) espresso machine, I quickly realized that making the perfect single espresso shot required more than simply halving the coffee used for a double shot. My machine came with two filter baskets: one for single shots and another for doubles. While preparing a double shot was relatively simple, perfecting the single shot required more trial and error to fine-tune the process.
Key Differences Between Single and Double Baskets
One of the first things I noticed was the design distinction between the single and double baskets. The single basket has a tapered or conical shape, while the double basket features a flat bottom. This design difference has a significant impact on how water flows through the coffee grounds.
In the single basket, the narrower base can lead to uneven extraction. The water tends to flow more quickly through the center, resulting in channeling and inconsistent extraction. This often leads to a shot that is under-extracted in some areas and over-extracted in others, diminishing the flavor.
As a result, I found that single shots lacked the balanced, rich flavor profile of a double shot, which consistently delivered a fuller, more satisfying taste.
Perfecting the Single Shot Technique
Determined to perfect the single basket shot, I experimented with several adjustments. Over time, I discovered a few key tweaks that significantly improved my results.
Increase the Coffee Dose
One breakthrough I had was increasing the coffee dose. At first, I assumed that halving the amount of coffee for a double shot—about 18 grams—would be sufficient. However, this method led to weak and flat shots that brewed too quickly.
After adjusting the dose to around 10 grams, I noticed better extraction times and a noticeable improvement in flavor. This change added depth and richness to the shot, making it far more enjoyable.
Adjust the Grind Size
Another crucial factor was adjusting the grind size. In the beginning, my single shots brewed too quickly, indicating that my grind was too coarse. By setting my grinder to a finer setting, I improved both the shot timing and the flavor balance.
Finer grinds slow the water flow, resulting in more even extraction. This small adjustment made a big difference in creating a balanced and flavorful espresso shot.
Use a Scale and Stick to a 1:2 Brew Ratio
For consistent results, precision became essential. I started using a scale to measure the coffee and espresso, aiming for a 1:2 brew ratio. For every gram of ground coffee, I targeted pulling twice that weight in liquid espresso. For example, with 10 grams of coffee, my target was 20 grams of espresso.
This method ensured that my single shots were well-balanced and not overly diluted or too weak.
Purge the Grinder Regularly
Switching between single and double baskets meant I had to be mindful of my grinder settings. After adjusting the grind for a single shot, I made it a habit to purge any leftover grounds from the grinder. This helped maintain consistency across shots.
This step is especially important if you frequently alternate between baskets, as residual grounds can affect the grind size and flavor balance of your espresso.
Overcoming Challenges and Enjoying the Benefits
Using the single basket was initially more challenging than the double, but the process became more rewarding as I honed my technique. With greater precision and patience, I was able to pull a clean, concentrated shot that worked perfectly in milk-based drinks like lattes and cappuccinos.
If you prefer a lighter, more delicate espresso or need a single shot for your milk drinks, these adjustments are worth experimenting with. Keep in mind that every espresso machine is unique, and you may need to tweak grind sizes, doses, and extraction times to match your preferences.
Conclusion
Mastering the single basket on a Breville or Sage espresso machine can be a bit daunting at first due to its conical design and the precision required. However, with persistence and experimentation, you'll be able to pull a beautifully balanced single shot.
Perfecting the single basket method not only improved my espresso-making skills but also deepened my appreciation for the art of brewing. I encourage you to explore and enjoy the satisfying experience of crafting a flawless single shot.