How to Use the Acaia Lunar Scale for Consistent Pour Overs
By Verve Coffee Roasters: Order Coffee Online | Fresh Roasted ... | Published: 2026-10-20
Category: How-to Guides
Learn to use the Acaia Lunar scale for accurate pour over ratios, brew weight tracking, and repeatable coffee. Step-by-step tips included.
Quick answer
Use the Acaia Lunar scale in weighing mode to measure coffee and water, then track brew weight and time to hit your target pour over ratio every time.
Why the Lunar scale helps pour over consistency
Pour over coffee depends on repeatable ratios and timing. The Acaia Lunar scale measures weight, time, and flow rate, so you can dial in your brew and reproduce it. Its compact aluminum body fits neatly on most pour over setups, though it was designed with espresso drip trays in mind.
The scale's precision matters because small weight differences change extraction. Using a consistent coffee-to-water ratio and tracking brew weight helps you adjust grind size or pour technique with confidence.
Trade-offs to consider
The Lunar is more compact than some other scales, which is great for tight spaces but may be smaller than you expect for a large pour over vessel. It also has a premium price, reflecting its build and features. If you mostly brew pour over and rarely pull espresso, a simpler scale might suffice, but the Lunar's timer and flow-rate display add useful data for fine-tuning.
How to use the Acaia Lunar for pour over
- Set up the scale: Place the Lunar on a flat, stable surface. Turn it on and select weighing mode. Make sure the display reads zero before adding anything. Check that the scale is level; an uneven surface skews readings.
- Weigh your coffee dose: Put your pour over dripper and filter on the scale, tare to zero, then add ground coffee until you reach your target dose (e.g., 20 grams for a 1:15 ratio). Always tare after adding the dripper and filter, not before.
- Tare and start the timer: Tare the scale again so it reads zero with the coffee in place. Start the timer as you begin pouring water. Use the timer to track your total brew time. Starting the timer with the first pour gives you consistent bloom and total time data.
- Track brew weight: Monitor the weight display as you pour. Stop adding water when you reach your target brew weight (e.g., 300 grams for 20 grams of coffee at 1:15). Use the brew weight to adjust your pour speed; a slower pour keeps the weight on target without overfilling.
- Review and adjust: After brewing, note the final weight and time. If the coffee tastes weak or strong, adjust your ratio or grind size next brew. The Lunar's flow-rate display can help you pour more evenly. Keep a simple log of dose, brew weight, and time to spot patterns.
Product spotlight
- Acaia Lunar Scale: The Acaia Lunar scale is designed for coffee enthusiasts that mind weight, time, and flow rate as you brew coffee. You can monitor all three during a pour over, which helps you hit your target ratio and brew time consistently.

Acaia Lunar Scale
