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Reference project
Rynkeby ozonates to prolong shelf-life
Introduction.
All fresh fruits free from microbial contamination at all times
When Inger Rasmusson squeezed her first apple broth in Danish Rynkeby in 1934, she could hardly dream that the company would make 150 million liters of juice on its way to the 90th anniversary. Today, the company is owned by German Eckes-Granini after previous owners MD Foods and Arla. Sales are mainly in Sweden and Denmark with a focus on juice from natural ingredients and without additives. The oranges are picked in Brazil and Mexico and shipped to Europe freshly squeezed both as it is and as a concentrate. Rynkeby also produces mixed juices, lemonade, tomato juice and ginger, turmeric and chili shots with lemon juice as a base.
The problem.
In 2017, Rynkeby Foods incorporated well known juice brands such as Brämhults, PAGO, God Morgon and Rynkeby, all known for their high quality, freshly squeezed juices. In order to ensure cross-brand quality and longest possible shelf-life, Rynkeby Foods were in dire need of a solution to avoid microbial contamination during the fresh produce washing and rinsing processes. The system needed to be turn-key, show high reliability and be easy to run as a part of the modern new production facility.
The solution.
Rynkeby turned to us to manufacture, deliver and commission an ozone system. We installed the Ozonetech RENA Vivo A-series to ozonate the fruit rinse water continuously during the juice production upstream of the fruit squeezing operation. By ozonating and regulating precisely the dissolved ozone concentration in the rinse tank, all fresh fruits are now completely free from any microbial contamination at all times, which ensures the high shelf-life in the final product.
The Ozonetech RENA Vivo system was delivered with an advanced control system with a Human-Machine interface, ambient ozone detectors for continuous air monitoring, variable frequency drive (VFD) pump to carefully control the ozone levels of the rinse water, and automatic degassing in the contact tank. The latter ensures that any residual ozone gas can be safely diverted to a safe exhaust point or ozone gas destruction.
Evaluation.
Ever since the commissioning of the facility and the ozone system, Rynkeby Foods now enjoys the most complete ozone system available on the market, ensuring product quality with an out-of-the-box solution. The ozone levels are automatically controlled to 1 ppm dissolved ozone concentration at less than 0.8 kW total input power. Our unique HELS™ technology along with the high levels of engineering our in-house expertise provides, makes the ozone system run reliably and consistently when needed at the push of a button. The system rinse carrots, oranges, apples and many more fruits.
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