Sustainability meets efficiency

How modern kitchen technology and water management are revolutionizing the catering and hotel industry
© Rational
© Rational
Alexandra Gorsche © Conny Leitgeb Photography
21. May 2025 | 
Alexandra Gorsche
21. May 2025
|
Alexandra Gorsche

Intelligent cooking systems, resource-saving water technologies and well thought-out processes: new studies and practical examples show how digitalization and sustainability go hand in hand in professional kitchens. What the industry can learn from this – and why investing in smart systems is worthwhile.

Intelligent kitchens as a game changer: increasing efficiency in commercial kitchens

The results of the practical study “Increasing the efficiency of commercial kitchens”, carried out by Weihenstephan-Triesdorf University of Applied Sciences together with Rational, speak for themselves: modern kitchen technology not only saves water and energy, but also improves the quality of the food and the working conditions for staff.

The study focused on the kitchen conversion of AXA Konzern AG in Cologne. The use of intelligent cooking systems such as the iVario Pro and iCombi Pro as well as the ConnectedCooking digital management system made it possible to achieve remarkable savings.

“For example, water consumption was reduced by 47.9%”, emphasizes study director Prof. Dr. Michael Greiner. The energy saving of 24.1% was also significant, despite the additional blast chiller. A key result: it's not the connected load that counts, but efficient operation - power peaks were reduced by 20.5%, which lowers energy costs in the long term.

More than just technology: ergonomics, quality and job satisfaction

In addition to ecological and economic factors, the perspective of the employees was also taken into account. Height-adjustable cooking systems and an optimized production model (e.g. cook & chill process) ensure ergonomic working and relieve the team through better planning. Food quality increases - not least because food no longer has to be kept warm for hours. “Modern technology makes everyday work easier and makes kitchen jobs more attractive - a real advantage in view of the shortage of skilled workers”, says Greiner.

Saving water without sacrificing comfort: the example of IHG voco Brussels City North

The hotel sector also shows how innovation and sustainability can go hand in hand. The voco Brussels City North Hotel relies on water-saving faucets from hansgrohe combined with the intelligent gray water recycling system from Hydraloop. With success: around 1.2 million liters of water are saved there every year.

The EcoSmart technology ensures that mixers and showers significantly reduce water consumption - while maintaining the same level of comfort. At the same time, the shower waste water is treated using Hydraloop technology and reused for toilet flushing.

“By combining water-saving technology with a well thought-out recycling concept, we can unite sustainability and design,” explains Hotel Manager Steven Vandevelde. An approach that has been rewarded with the Green Key certificate for sustainability - and can serve as a role model for the industry.

Our conclusion for the future

Whether in commercial kitchens or hotel bathrooms - the way to greater sustainability is through intelligent technologies and well thought-out processes. The examples show impressively that investing in smart kitchen appliances, water recycling and energy-efficient systems not only pays off ecologically, but also economically. For the industry, this means that those who modernize now not only strengthen their future viability, but also their attractiveness as an employer and guest satisfaction.

A la table, s'il vous plaît! A la table, s'il vous plaît! A la table, s'il vous plaît! A la table, s'il vous plaît!
Copyright for the featured images used:
© Rational

Taste of Tomorrow 2026 in Salzburg

Young chefs’ competition brings Michelin-starred chefs, social media stars, and young talents to Klessheim

Following its successful debut last year, Taste of Tomorrow 2026 enters its next round, once again making Salzburg the stage for the future of gastronomy. With a prominent jury featuring Mike Süsser, Martin Klein, and Vroni Lutz, strong partners, and young culinary talents from all over Austria, the competition becomes a hotspot for creativity, sustainability, and culinary innovation.

Experience Tampa

The City's Best Leisure, Cultural, and Hidden Gems

Tampa is a city defined not by headlines, but by experiences. Nestled between water, history, design, and a surprising depth of culture, it unfolds as a destination that offers far more than just beaches and sunshine. Look closer, and you’ll discover an urban energy that’s thoughtfully curated yet leaves room for genuine, unplanned moments. This guide takes you through precisely these facets: well-researched, tried-and-true, and with an eye for details you don’t Google – you experience.

When “It’s okay” Isn’t Okay

May’s Invitation: Listen More Closely

Let’s start with a little communication test. No rankings. At most, with the question: How well do we actually listen, or how precisely do we express ourselves?

quick & dirty
Modern kitchen technology © Rational
Sustainability meets efficiency

Intelligent cooking systems, resource-saving water technologies and well thought-out processes: new studies and practical examples show how digitalization and sustainability go hand in hand in professional kitchens. What the industry can learn from this – and why investing in smart systems is worthwhile.