BOOKOO Themis Ultra - Bluetooth Coffee Scale

Why weigh coffee to 0.1g precision?

With espresso, tenths of a gram determine the taste. One gram more Kaffeemehl in the portafilter and your recipe runs differently. The Themis Ultra resolves 0.1g and reacts with 0.1g/s dynamic precision fast enough even during extraction to show deviations instantly. The weighing range goes up to 2000g, so even a full carafe fits on the platform.

How water-resistant is the Themis Ultra?

Spilled brew water is the most common reason why coffee scales break. The Themis Ultra is sealed to IP67 against water and dust: splashes, wet hands and brief rinsing won't harm it.

The manufacturer does mention two limits, and we think that's important to know: avoid prolonged submersion as well as hot water and steam over extended periods. For hot carafes and cups, a silicone mat is included that insulates against heat and protects the weighing surface from scratches.

Timer and four modes

The scale is operated via two capacitive touch buttons, and the integrated timer measures your brew time directly on the scale.

Four modes cover different working methods: pure weighing, flow rate in real-time, ratio display for your brew ratio, and an auto mode that automatically tares during extraction, starts the timer and stops it as soon as flow drops to zero.

Which apps work with the scale?

Connected to the BOOKOO N App, the scale records extraction curves: weight, time and flow rate for every brew. The scale is not tied to the manufacturer's app: it communicates via an open Bluetooth protocol and also pairs with Beanconqueror, Odyssey Espresso and the DEESPRESSO App, as well as smart machines and retrofit systems like Decent, Maro, Gaggiuino and Gaggimate. And if you don't want an app at all: The scale works completely without one. Via the BOOKOO N App you only set weight unit, beep tone, splash guard mode and auto shut-off (default: 15 minutes) and upload firmware updates.

Our recommendation is Beanconqueror: an app that convinced us and for which Ben published a video. With it you store detailed records of all relevant parameters related to your espresso or filter coffee extraction. You'll find virtually all our coffees and their data in the app as well.

Themis Ultra or Themis Mini - which is right for you?

We carry both Themis scales, and the decision is simpler than it looks: it's about space.

The Themis Mini measures only 80 x 80mm and thus fits on tight drip trays, under compact machines and in your travel bag. But it only weighs up to 1000g and features IPX4 splash water protection instead of waterproofing.

The Ultra is the scale for a permanent spot on the counter: larger platform for pour-over carafes and servers, 2000g capacity, IP67, three values simultaneously on display instead of two, and three times the battery life.

In short: Ultra for home and all brewing methods, Mini if every millimeter under the machine counts.

Battery instead of disposable batteries

Charged via USB-C, a full charge takes around two hours. The 2000mAh battery lasts up to 72 hours in continuous operation. For everyday use, that means: plug it in every few weeks and you're good to go.

Technical specifications

What's included

• 1x BOOKOO Themis Ultra coffee scale
• 1x silicone mat
• 1x USB-C charging cable
• 2x electrostatic protective film

Instructions for download

• User manual (multilingual, incl. German) [Download PDF here]
• Quick Start Guide (English) [Download PDF here]