When I first started using my Breville (or Sage) espresso machine, I quickly realized that crafting a perfect single espresso shot required more than simply halving the coffee used for a double shot. My machine included two filter baskets: one for single shots and another for doubles. While pulling a double shot was straightforward, achieving the perfect single shot took more experimentation and precision.
Key Differences Between Single and Double Baskets
One of the first things I noticed was the distinct design of the single basket compared to the double. The single basket features a tapered or conical shape, unlike the flat-bottomed double basket. This seemingly minor difference significantly affects how water flows through the coffee grounds.
The narrower base in the single basket often causes uneven extraction, with water moving more quickly through the center. This uneven flow leads to channeling, resulting in some areas of the coffee being under-extracted while others are over-extracted.
As a result, single shots often lacked the balanced, full-bodied flavor I could achieve by splitting a double shot into two cups. The double shot consistently delivered a richer, more satisfying flavor profile.
Refining Your Technique for Single Shots
Determined to master the single basket, I experimented with various techniques. Over time, I discovered a few key adjustments that made all the difference.
Increase the Coffee Dose
One major breakthrough was modifying the coffee dose. Initially, I thought halving the amount of coffee used for a double shot—around 18 grams—would suffice. However, this approach produced weak, flat shots that brewed too quickly.
Increasing the dose to about 10 grams resulted in better extraction times and a noticeable improvement in flavor. This adjustment brought more depth and richness to my single shots, making them far more enjoyable.
Adjust the Grind Size
Another crucial factor was dialing in the grind size. Early attempts with the single basket produced shots that brewed too fast, indicating that the grind was too coarse. Adjusting my grinder to a finer setting improved both shot timing and flavor balance.
Finer grinds slow the water flow, allowing for more even extraction. This simple tweak was instrumental in achieving a more balanced and flavorful espresso.
Use a Scale and Maintain a 1:2 Brew Ratio
Precision became my ally, and using a scale was essential for consistent results. I adhered to a 1:2 brew ratio: for every gram of ground coffee, I pulled twice the weight in liquid espresso. With 10 grams of coffee, I aimed for 20 grams of espresso.
This method ensured my single shots were neither weak nor overly diluted, delivering a well-balanced and concentrated espresso every time.
Don’t Overlook the Grinder Purge
Switching between single and double baskets required extra care with my grinder. After adjusting the grind size for a single shot, I made sure to purge any leftover grounds to maintain shot consistency.
This step is especially critical if you frequently alternate between baskets. Leftover grounds can disrupt the grind size and affect your shot’s flavor balance.
Overcoming Challenges and Enjoying the Rewards
While using the single basket was initially more challenging than the double, it became a rewarding process once I honed my technique. It required more precision and patience, but the result was a clean, concentrated shot that worked beautifully in milk-based drinks like lattes and cappuccinos.
For those who prefer a lighter, more delicate espresso flavor or need a single shot for their milk drinks, experimenting with these adjustments is worthwhile. Keep in mind that each espresso machine and individual taste preference may require further tweaking. Adjust grind sizes, doses, and extraction times until you find the ideal balance for your palate.
Final Thoughts
Mastering the single basket with a Breville or Sage espresso machine might feel daunting at first due to its conical design and the precise adjustments it requires. However, with persistence and experimentation, you can achieve a beautifully balanced single shot.
Perfecting the single basket has not only improved my espresso-making skills but also enhanced my appreciation for the art of brewing. I encourage you to experiment and discover the rewarding experience of pulling a flawless single shot.