Swedish Water-Tech Innovator Bluewater Launches Coffee Rock in Europe

A game-changing Bluewater science-based mineral formula improves coffee extraction for richer flavor, extends equipment lifespan by reducing scale build-up, and increases café efficiency for consistent performance.

Stockholm, May 16, 2026 – Swedish water and beverage technology company Bluewater, part of the BLUE AB portfolio of purpose-driven companies founded by Swedish entrepreneur Bengt Rittri, has launched a new mineral-engineered water formula in Europe designed to improve coffee flavor, consistency, and machine performance.

BLUE AB was established by Rittri in 2016 following the sale of his world-leading indoor air purification company, Blueair, to Unilever. He founded Blueair in the early 1990s and rapidly expanded it into a global business spanning markets from China to the United States

Called Bluewater Coffee Rock, the science-led product is engineered to optimize one of coffee’s most overlooked ingredients: water, enhancing flavor extraction and consistency

After its global debut at the World of Coffee Bangkok in early May, Coffee Rock was launched in Europe on Saturday at London’s Bloomtown Festival, hosted by Batch Baby in Islington who installed a Bluewater Café Station to demonstrate the technology in a live café setting

Developed over two remarkable years under the visionary guidance of Bluewater Chief Scientist Dr. Ahmed Fawzi and Product Lead Maximillian Lundin, Coffee Rock harnesses innovative precision mineral engineering to elevate coffee extraction and unlock exceptional flavor

Although water accounts for more than 98 percent of the prepared coffee, its mineral composition directly shapes extraction, taste and machine longevity. Coffee Rock features a 6:1 magnesium-calcium ratio intended to improve sweetness, clarity, complexity and body in specialty coffee

“Flavor is something baristas should be able to dial in with precision,” said Lundin. “Coffee Rock mineralizes every cup precisely so each bean can express its full character.

Bluewater says the product tackles a major operational issue for cafés with excitement: limescale and corrosion in espresso machines. Traditional water chemistry can cause damaging scale at high temperatures and corrode metal components. Coffee Rock’s thermally stable mineral profile is specially engineered to dramatically reduce both risks, slashing maintenance costs and keeping equipment running longer and smoother.

The product is compatible with Bluewater Café Station systems, which use the company’s SuperiorOsmosis™ technology to remove up to 99.7 percent of contaminants while using less water than conventional reverse osmosis systems.

“Water chemistry remains one of the least understood yet most influential variables in specialty coffee,” said Dr. Fawzi. “Coffee Rock combines scientific precision with practical café performance.

Coffee Rock is available from mid-May in the UK, Sweden, Asia, North America, and the UAE.

Other drinking-water-focused innovators in the BLUE portfolio include Spain’s TappWater and US-based FloWater, both focused on improving access to cleaner, more sustainable drinking water. Discover more on the Blue AB website, bluepurpose.com .

• - Portfolio enquiries to Klas Gustafsson at klas.gustafsson@blueab.se
• - Press enquiries to Dave Noble, Chief Communications Officer, david.noble@bluewatergroup.com

About Blue AB
Blue AB is a purpose-driven holding company investing in innovative environmental technologies, with a strategic focus on water purification, beverage solutions, and sustainable resource use. For more information about the Blue AB portfolio, visit bluepurpose.com.