The Acaia Lunar 2021 coffee scale is a must-have for all coffee lovers and baristas. This precise and elegant scale was specially designed for coffee preparation and offers a variety of functions to help you brew the perfect cup of coffee.

The Acaia Lunar 2021 coffee scale features a high-resolution, waterproof weighing platform that enables precise measurements accurate to 0.1 grams. Its fast response time allows you to use the flow rate mode to monitor water flow during the pour-over method, ensuring optimal extraction.

This coffee scale features an intuitive user interface for easy operation. The easy-to-read OLED display clearly shows the measurements, while the touch buttons offer responsive control. The Acaia Lunar 2021 coffee scale in black also has an integrated timer function, allowing you to precisely measure the brewing time.

The elegant design of the Acaia Lunar 2021 coffee scale makes it a real eye-catcher in any kitchen or coffee shop. Its black color gives it a modern and sophisticated look. The compact size and robust housing also make this scale very durable and easy to transport.

Experience the precision and accuracy you need for professional coffee brewing with the Acaia Lunar 2021 coffee scale. Whether you're a passionate home barista or a professional barista, this scale will help you take your coffee to a whole new level.

The Acaia Lunar 2021, the ultimate coffee scale for coffee enthusiasts and professionals. With its sleek and modern design, the Lunar 2021 adds a touch of sophistication to any coffee brewing setup.

This scale features high-precision sensors capable of weighing up to 2 kg with an accuracy of 0.1 g, ensuring your coffee brewing process is accurate and consistent every time. Its fast response time and integrated stopwatch allow for precise timing and accurate control of the brewing process, making it the perfect tool for pour-over coffee and espresso.

The Lunar 2021 also features a built-in rechargeable battery that allows for up to 27 hours of continuous use, as well as a robust aluminum housing that is resistant to water and heat. The easy-to-read LED display and responsive touch-sensitive buttons make it user-friendly and intuitive to use.

Precision in the cup – Why an Acaia espresso scale makes the difference

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Why a precise espresso scale is crucial

In espresso preparation, every tenth of a gram determines the taste, consistency, and balance. A minimal deviation in weighing the coffee grounds or extraction volume can change the shot – from balanced to over-extracted or under-extracted.

That's why baristas worldwide trust Acaia espresso scales , available at the Coffee Coaching Club . Each scale is calibrated by hand to ensure the highest accuracy and absolute measurement stability – a quality standard that sets benchmarks in the industry.

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Acaia scales compared: Lunar & Pearl

Model	Measuring range	Deviation (0–500 g)	Special feature	Ideal for
Acaia Lunar	0–500 g	±0.05 g	Hand-calibrated, aluminum case	Espresso machine
Acaia Pearl	0–500 g	±0.2 g	Hand-calibrated, large display	Filter coffee, Brew Bar
Standard scale (other brand)	0–500 g	±0.5 g	Serial calibration	Everyday use

This makes Acaia scales up to ten times more precise than conventional models – and all with individually tested craftsmanship.

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Calculation example: How precision affects espresso

A classic espresso shot consists of:

• Amount of coffee (input): 18.0 g

• Espresso output (output): 36.0 g

• Container weight (cup): 250 g

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Example 1: Acaia Lunar (±0.05 g deviation)

1. Before moving in:
   Tare = 250 g → Zeroing → Ground coffee:
   The actual amount is between 17.95 g and 18.05 g.

2. After moving in:
   Total weight 286 g → actual espresso: 35.95 g to 36.05 g

🔹 Total deviation: ±0.1 g
🔹 Error rate: 0.28%

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Example 2: Standard scale (±0.5 g deviation)

1. Before purchase: 17.5 g to 18.5 g

2. After retrieval: 35.5 g to 36.5 g

🔸 Total deviation: ±1.0 g
🔸 Error rate: 2.8%

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Impact on the result

parameter	Acaia Lunar	Standard scale
Amount of coffee	17.95–18.05 g	17.5–18.5 g
Espresso output	35.95–36.05 g	35.5–36.5 g
Brew Ratio	1:2	1:1.9 – 1:2.1
The taste	Consistent & balanced	Fluctuating & unpredictable

Even deviations of 1 g significantly change the extraction ratio !
Try it yourself!

The hand-calibrated precision of an Acaia scale minimizes these errors and achieves reproducible results with every shot .

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Technological and artisanal advantages of Acaia scales

• Manual calibration of each device: Every Acaia scale is individually tested and fine-tuned to ensure absolute accuracy.

• High response speed: Instant weight display for real-time measurement during extraction.

• Bluetooth & App Connectivity: For data logging, timer and recipe management.

• Robust design: The Lunar with its solid aluminum housing is ideal for use under the portafilter machine.

• Minimalist aesthetics: Reduced design that combines functionality and style.

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Conclusion: Precision means control – and manual work

With an Acaia espresso scale, you don't get a mass-produced item, but a precision-engineered measuring instrument – ​​calibrated by hand and tested for absolute reliability.

Whether Acaia Lunar for espresso or Acaia Pearl for filter coffee – both models offer the same philosophy: Perfect precision for perfect taste.

Available at the Coffee Coaching Club – your partner for high-quality coffee equipment and professional coaching.

Includes 100g calibration weight, black protective cover, and charging cable.

++ The 2021 version has an even faster response time, a flow rate indicator, a USB-C charging port, and an even brighter display. ++

Download Acaia Apps: http://acaia.co/pages/apps

**User note: Charging ports with an output exceeding 5V and 1A, as well as overcharging, can damage the battery (see user manual).