September 24, 2021
4 min read
Beverage dispensing

Sparkling Water for the Office

Die Kaffeemeister’s new drinking solutions at the workplace went beyond coffee to hydrate and appeal to employees.

Die Kaffeemeister
Overath, Germany


droople water monitoring system

Die Kaffeemeister, a newly launched brand by Soennecken, was built using many synergies around professional and inspiring work environments. Soennecken, located in the German town of Overath near Cologne, is a market leader in german-speaking countries specialized in supplying office spaces with a broad range of products and services. With the launch of Die Kaffeemeister, the company is entering new territory in drinking solutions for the workplace, making the most out of break-time. The newly founded Office Coffee Service (OCS) franchise concept provides beverage as a service to offices with advanced equipment, consumables and technical service. Their pay-per-use business model has rapidly evolved to successfully extend improved drinking water supply with filtration systems and sparkling water.

Managing a customer’s large water dispenser fleet across a country such as Germany is a major challenge for large service providers such as Die Kaffeemeister.


The three-month pilot project proved to be a brilliant idea. Indeed Die Kaffeemeister stands for best-in-class service quality with seamless equipment operations. As Droople’s fountainOS was integrated in three test water dispensers, the technical challenge required precise automated procurement for all consumables including water filters and food grade CO2 cylinders. To guarantee both optimal logistics and best beverage quality, Droople used 2 different smart sensors: a water sensor and a gas pressure sensor, combined with specific algorithms to monitor a water dispenser’s health remotely and in real-time.

To broaden the consumables management range and include the automatic re-ordering of gas cylinders for water dispenser/HoReCa applications, Droople entered a collaboration with Unterbichler, a large subsidiary of Linde, Germany, supplying restaurants, catering companies and many other customers with dispensing gases used in the food industry.

The automatic gas re-ordering procurement solution was built using Unterbichler’s webshop capabilities allowing automatic e-mail notifications reading. Droople’s software was upgraded with new protocols for issuing alarms and notifications in the format matching exactly the Unterbichler requirements.

The fountainOS relies on the precise monitoring of the CO2 canister’s pressure drop, enabling the prediction and ideal moment to exchange the gas bottle guaranteeing service continuity. Indeed, the gas bottle pressure deviates very little from the nominal pressure of 60 bar during its lifespan. Whereas the pressure dropping to about 40 bar announces a rapid end-of-life where the remainder bottle volume is then only 10%! This roughly equals to 30 to 90 liters of sparkling water available, depending on the gas canister size.

water pressure graph in bar

To avoid any service interruption, the Droople software implements automatic re-ordering of a new CO2 cylinder when this threshold is met. Customers can even opt for the exchange service of CO2 cylinders when the new one is delivered. An additional friendly reminder is sent when the gas cylinder is detected empty – this is very useful in case the service contract only includes delivery, with the actual exchange performed by the customer themselves.

Currently, the automatic ordering and exchange of CO2 cylinders is only available in Germany where Droople is closely collaborating with Unterbichler, a German and sister company of the Linde Group, specialied in gas supply for gastronomy.

actionable insights


Office Coffee Service - now enhanced with best-in-class water supply and choice for sparkling water


Innovation: Automating procurement for CO2 cylinders


Operators can also optimize planned interventions for maintenance visits.


State-of-art water dispenser fleet management with precise prediction of filter swap, detection of possible leakage, all based on sensor data collection and analysis.


The Awareness Screen offers real-time water consumption footprint. Metrics on water consumption and its positive impact towards environmental contribution and climate change. A great add-on for both office employees, employers and partners – how we all contribute to building a more sustainable future together!

SDIS de la Plaine de l’Orbe

The SDIS de la Plaine de l'Orbe is proud to provide its firefighters with a smart water fountain. Thanks to the Droople system, we can see our environmental impact in real time.

Jonathan Gomber

Firehouse Commander

Regler Coffee

Active climate protection, health promotion and cost savings are the 3 most important advantages: Do employees drink enough water at the office? What is the environmental impact? Good for the environment, good for the wallet.

Bernhard Kiesel

Managing Director


Droople makes it possible to track tap water consumption and the environmental impact it saves in real time. A real added value for all involved!

Lior Etter

Co-founder & Managing Director


Thanks to fountainOS, as a company we can calculate the water consumption to best meet the customer's request. Water consumption is calculated so that the filter can be changed at the right time.

Béatrice Mauroux

Sales Manager


Already a great success with +17,000 liters distributed, with +62,700 consumers... the ecological impact (via Droople's technology) is very positive with nearly 34,000 50cl plastic bottles saved and 3,000 kg less CO2!

Fabrice Cretin

General Director

Die Kaffeemeister

No more unnecessary inspections by service operators, enabling all-remote monitoring and putting IoT at the service of office solution providers.

Tobias Wiebe

Expansion Manager


Let’s learn how exactly smart water systems impact the consumption, conservation and quality of water resources on the planet.

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Login at with the credentials you received. Welcome to your Water Intelligence Platform!

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