Acaia Pearl S — Precision Coffee Scale
The Acaia Pearl S is a professional smart coffee scale that measures weight to 0.1 g, displays real-time flow rate, and features app-driven Brewguide recipes, voice notifications and Bluetooth connectivity — built for specialty cafés, baristas and precision-minded home brewers who demand repeatable results.
Dimensions
W 160 × L 160 × H 32 mm
Product weight
620 g ± 5 g
Maximum capacity
3 000 g
Battery
Rechargeable lithium-ion 3.7 V 2200 mAh (USB-C charging)
The Acaia Pearl S is a next-level brewing scale engineered to bring laboratory-grade repeatability to everyday coffee service. At its core the Pearl S offers ultra-fine readability (0.1 g) across a 3 000 g capacity and a responsive dot-matrix LED that shows weight, time and real-time flow-rate simultaneously — essential feedback when dialing in pour-over recipes or timing espresso yields. This combination of precision sensors and a high-clarity display makes the Pearl S ideal for baristas who need to measure dose, yield and pour speed in one glance.
Built for connected workflows, the Pearl S pairs with Acaia’s mobile app to download Brewguide recipes, store tasting notes and share brewing protocols across teams. The scale’s Brewguide mode gives step-by-step, on-device guidance while the Flow-Rate mode quantifies pour speed so you can refine technique from one session to the next — a powerful advantage for cafés running consistent brew programmes or for retail customers learning to reproduce their favourite café cup at home. Voice and sound notifications announce weight or time, and a customisable Countdown mode offers multiple tones to suit busy service environments.
Durability and ergonomics are also top of mind. The Pearl S is housed in a robust PC shell, measures 160 × 160 × 32 mm, and weighs roughly 620 g — compact enough for a crowded bar but substantial enough to stay steady under a brewer or portafilter. Rechargeable lithium-ion power (USB-C) delivers long run times, and Acaia rates battery life between about 16–40 hours depending on use. The package ships with a heat-resistant coaster and USB-C charging cable so the scale is ready for immediate use.
For coffee businesses and enthusiasts seeking a measurable edge, the Pearl S supports multiple tailored modes — espresso, portafilter, pour-over auto-start, timer, and a full Flow-Rate display — letting you match the scale to the task and capture consistent results. The unit’s Bluetooth 5.0 connectivity and app integration also make it simple to standardise recipes across multiple units or staff, turning individual brewing technique into repeatable café standards. Acaia’s reputation for precision hardware, the Pearl S is a flagship tool for anyone serious about reproducible, high-quality coffee.
Specifications
- Dimensions: W 160 × L 160 × H 32 mm.
- Product weight: 620 g ± 5 g.
- Maximum capacity: 3 000 g (105.82 oz).
- Minimum/readability: 0.1 g.
- Display: 8-digit dot-matrix LED (shows weight, time, flow rate).
- Connectivity: Bluetooth 5.0 for app integration and recipe sharing.
- Battery: Rechargeable lithium-ion 3.7 V 2200 mAh (USB-C charging).
- Battery life: Up to approximately 16–40 hours (usage dependent).
- Materials: PC housing; heat-resistant coaster included.
- In the box: Pearl S scale ×1, heat-resistant coaster ×1, USB-C charger cable ×1.
Features
- Pro-Level Precision — 0.1 g readability across a 3 000 g range gives the control needed for espresso dosing and pour-over yields.
- Real-Time Flow-Rate — Triple display presents weight, time and flow rate simultaneously so you can measure pouring speed and adjust technique on the fly.
- Brewguide & App Integration — Download and follow step-by-step recipes from the Acaia app; share recipes across teams to standardise brewing.
- Sound & Voice Notifications — Audible or spoken cues announce weight/time milestones — useful when your eyes are on the brew, not the scale.
- Robust & Ready for Service — Compact footprint, long battery life and USB-C charging make the Pearl S practical for busy café counters and training environments.