What does the DUO show on the dual display?

Left: total weight (coffee + water). Right: the extracted amount. This lets you adjust by result rather than time.

How does the rotating dripper ring work?

Turning it stops or releases the water flow – no second hand needed.

Is the DUO Bluetooth-connected?

No, this variant is cordless and analogue. The LCD display shows everything, no app needed.

Can I see the DUO before buying?

Yes, in the showrooms in Bern and Zurich Oerlikon.

Timemore Black Mirror DUO coffee scale - Coffee Coaching Club

Timemore Black Mirror DUO coffee scale

Name: Timemore Black Mirror DUO coffee scale
Brand: Timemore
SKU: B707_6959493512221
Price: 109.95 CHF
Availability: InStock

Timemore

SKU: B707_6959493512221

Price

CHF 109.95

CHF 119.95 CHF 109.95

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Timemore Black Mirror DUO coffee scale Timemore

CHF 109.95 CHF 119.95 Save CHF 10

Interactive tool

Drip Coffee Simulator

Choose your method, dose and ratio, and see where your recipe lands on the Golden Cup chart.

Explore more →

Questions about this product?Jackson, our AI advisor, answers right away.

Free shipping to Switzerland and Liechtenstein from CHF 60
Order online or in store
Two stores: Bern and Zurich

Order online. Personally supported.

You order directly through our online shop. If you have questions, we're happy to help — online or in person — with experience from our roastery, cafés and showrooms.

Advice & support

We support you before and after your purchase — online or in person in Bern and Zurich.

Shipping & pickup

Free shipping in Switzerland and Liechtenstein from CHF 60. Pickup is available where offered for your order.

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Timemore Black Mirror DUO – scale with flow rate and dripper ring

The DUO shows two values at once: the total weight and the amount extracted so far. The dual-arm load cell reacts instantly to every change – you see live how quickly the water is running through the coffee. A rotating ring on the housing lets you stop the flow instantly. Seven years of development, recommended by Van Lin, Taiwan National Barista Champion.

At a glance

Load cell	Dual-arm, high precision
Measurement accuracy	0,1 g
Display	Dual LCD (total + extracted)
Flow rate	Real-time feedback on your pouring technique
Dripper holder	Adjustable, rotates to stop
Measurement range	0,5–2000 g
Development	7 years, champion-recommended

Who it's for

For anyone who wants to visualise brewing details and experiment. The DUO shows in real time whether your pouring technique is even. The rotating dripper ring gives you complete control – you don't stop with a second hand, but with your wrist. A tool for home baristas who bring science and craft together. If you prefer something simpler: Black Mirror Basic 2.

Order directly online

Delivery throughout Switzerland and to Liechtenstein in 2–4 working days. Click & Collect in Bern and Zurich available.

Frequently asked questions

What does the dual display show?

On the left, the total weight (coffee + water); on the right, the extracted amount. This lets you adjust your recipe by result, not just by time.

How does the dripper ring work?

You turn it – that stops or releases the water flow instantly. Handy for all-in-one pour-over without a second hand.

Is it Bluetooth-connected?

No, this version is cordless and analogue. No app needed – the display shows everything.

Can I see it?

Yes, in the showroom in Bern and Zurich Oerlikon.

Tip from our coffee roastery

With the DUO in pour-over: work with Nutty Delight, watch the flow rate and adjust your pouring technique. That's our recommendation, one of many.