How to Brew Single Origin Espresso at Home

By Code Black Coffee | Published: 2026-10-26

Category: How-to Guides

Learn how to brew single origin espresso at home with a step-by-step guide. Tips for dialing in washed SL28 beans from Colombia for a clean, fruity shot.

Quick answer

Brewing single origin espresso at home requires a light touch: start with a medium-fine grind, a 1:2 brew ratio, and water at 200°F, then adjust based on flavor. Washed beans like Colombia Maria Rodriguez SL28 reward precision with bright, clean shots.

Why single origin espresso needs a different approach

Single origin beans, especially washed lots like the Colombia Maria Rodriguez SL28, highlight specific terroir and processing notes. Unlike blends designed for consistency, single origins can be more sensitive to grind and temperature. A slight change in dose or extraction time can shift the flavor from bright and fruity to bitter or sour.

Trade-off: clarity vs. body

Washed single origins tend to produce a cleaner, more acidic espresso with less body than a traditional blend. If you prefer a heavier mouthfeel, consider a slightly finer grind or a higher dose, but watch for over-extraction. The SL28 variety in this Colombia lot is known for its bright acidity and sweetness, so aim to preserve that character.

Step-by-step guide to brewing single origin espresso

1. Measure your dose: Weigh 18 grams of whole bean single origin espresso (like Colombia Maria Rodriguez SL28) for a double shot. Use a scale for accuracy, not volume. Consistent dose is the foundation of repeatable espresso.
2. Grind to a medium-fine setting: Start with a grind that feels like fine sand. For washed single origins, a slightly coarser grind than a dark blend often helps avoid channeling. Adjust finer if the shot runs too fast (under 25 seconds). A common mistake is grinding too fine for washed beans—expect a slightly longer pre-infusion.
3. Distribute and tamp evenly: Use a distribution tool or your finger to level the grounds in the portafilter. Tamp with firm, even pressure—about 30 pounds. An uneven tamp can cause uneven extraction and sour or bitter flavors. Check for a level puck after tamping; a tilted surface guarantees channeling.
4. Brew at 200°F with a 1:2 ratio: Set your machine to 200°F (93°C). Aim for a 36-gram yield in 25-30 seconds. If the shot is sour, extend the time slightly; if bitter, shorten it. For washed SL28, a slightly longer ratio (1:2.5) can tame acidity. Don't chase a specific time—taste and adjust. A 30-second shot can still be under-extracted if the grind is too fine.
5. Taste and adjust: Sip the espresso immediately. Note the acidity, sweetness, and body. For a brighter profile, keep the ratio tighter (1:2). For more sweetness, try a slightly higher yield (1:2.5). Keep a log of your settings. Single origin espresso changes as the beans age—re-dial every few days.

Featured product

Colombia Maria Rodriguez SL28 Washed Espresso - Single Origin: Colombia Maria Rodriguez SL28 Washed Espresso is grown in the highlands of Palestina, Huila, by a network of 117 smallholder families practicing chemical-free farming. This washed SL28 offers a clean, bright profile that lets you taste the terroir—ideal for dialing in a single origin espresso at home.
Colombia Maria Rodriguez SL28 Washed Espresso - Single Origin