How I Dial In My Espresso at 1.42 Brew Ratio

Making espresso isn’t just about pushing water through coffee — it’s about control. Whether you’re chasing balance, sweetness, or intensity, every variable matters: dose, yield, time, and even how you light your shot for the perfect photo. This is how one roaster approaches it, with exact numbers and real-world adjustments.

The short answer? This roaster starts with a 19.2g dose and aims for a 27.4g yield — a 1.42 brew ratio. Their usual target range is 1.25 to 1.5, adjusted to taste and coffee profile.

Why Brew Ratio Matters in Espresso

Brew ratio — the weight of coffee grounds to the weight of espresso produced — defines concentration and extraction potential. A higher ratio (e.g., 1.5) typically yields a stronger, more intense shot, while a lower ratio (e.g., 1.25) results in a lighter, sweeter cup. Most specialty baristas aim between 1:2 and 1:3, but the "right" ratio depends on the coffee, roast level, and desired flavour outcome.

How This Roaster Dials In Their Espresso

This particular shot began with a 19.2g dose, extracted to 27.4g yield. That produces a brew ratio of 1.42 — calculated simply as 27.4 ÷ 19.2. The roaster notes that their ideal range spans 1.25 to 1.5, and they flex within that based on the coffee’s characteristics and their taste preferences that day.

Lighting an Espresso Shot for Photography

Capturing a great espresso photo involves balancing several conflicting light needs. Too much light washes out the scale display. Reflective surfaces like stainless steel can blow out highlights. And if you reduce light to manage the shine, you risk underexposing the crema — which absorbs light rather than reflecting it. Getting all three elements (scale, metal, crema) properly exposed takes deliberate lighting setups and compromises.

Key Numbers from the Shot

• Dose: 19.2g
• Yield: 27.4g
• Brew ratio: 1.42 (27.4 ÷ 19.2)
• Target brew ratio range: 1.25–1.5 (adjusted by taste)

Frequently Asked Questions

What is a good espresso brew ratio?

A good espresso brew ratio typically falls between 1:2 (e.g., 18g in, 36g out) and 1:3 (e.g., 18g in, 54g out). Many specialty coffee professionals aim for a ratio in the range of 1.25 to 1.5. The exact ideal depends on the coffee origin, roast level, and desired flavour profile, with higher ratios producing stronger, more intense shots and lower ratios yielding sweeter, lighter cups.

How do you calculate espresso brew ratio?

Espresso brew ratio is calculated by dividing the weight of the espresso yield by the weight of the coffee dose. For example, if you use 19.2g of coffee and produce 27.4g of espresso, the brew ratio is 27.4 ÷ 19.2 = 1.42. This can also be expressed as 1:1.42.

Why does brew ratio affect espresso flavour?

Brew ratio affects concentration and extraction. A higher ratio (e.g., 1.5) results in a denser, more intense shot with potentially more bitterness or body, while a lower ratio (e.g., 1.25) yields a sweeter, more diluted cup. Adjusting the ratio helps highlight different flavour attributes in the coffee.

What is the ideal espresso dose?

The ideal espresso dose often ranges from 18g to 21g for a double shot, depending on basket size and roaster preference. In this case, the roaster used a 19.2g dose, which is common for many standard double baskets and allows for balanced extraction within typical yield ranges.

How do you light an espresso shot for a photo?

To photograph an espresso shot well, you need to balance exposure for the scale (avoid washing out numbers), the metallic machine or portafilter (manage reflections), and the crema (which absorbs light). This often requires adjusting light intensity and direction to prevent overexposed highlights and underexposed shadows simultaneously.

Recommended FrontStreet Beans for Espresso

For dialling in espresso at a 1.42 brew ratio, try FrontStreet Coffee’s Ethiopia Huakui — bright and complex with blueberry and floral notes — or their Strawberry Candy Espresso, a sweet and juicy single origin with strawberry and candy-like tones. For a darker, richer base, their Black Cocoa Blend offers chocolate and roasted walnut depth. All three roast profiles respond well to 1:1.4 to 1:1.5 brew ratios. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.