Swiss technology group Bühlerhas acquired innovative puffing technology from CEREX for food, petfood, and feed applications. CEREX, a Swiss manufacturer of machines for food, feed, and non-food applications, originally developed this technology.
This strategic acquisition not only broadens Bühler’s product offerings, providing enhanced solutions to address the growing demand for healthier and more diverse food options but leverages the company’s full potential to benefit the customer.
“The puffing process is a game-changer in how we approach cereal and snack production, offering a broad range of recipe possibilities, including coatings and fillers across many product categories,” said Christoph Vogel, head of Business Unit Human Nutrition at Bühler. “The integration of this technology into Bühler’s portfolio strengthens our ability to meet the evolving needs of our customers and fosters continued innovation in recipe development.”
Puffing is a hydrothermal process that uses heat and pressure to significantly expand the volume of raw materials. The process requires the material to contain 10-14% water and 65-75% starch, with protein and fat levels also affecting the outcome. Puffed products offer several advantages. Their increased volume and porosity make them lighter and crispier – a highly desirable quality for snacks and cereals. The puffing process also enhances digestibility by breaking down starches and improves shelf life by reducing moisture content and preventing spoilage. It also boosts nutritional potential as the product can easily be enriched with vitamins, minerals, or proteins.
The new acquisition will not only add value to Bühler’s offerings but also contribute to the production efficiency and sustainability of customers’ plants. Bühler's Cerex puffing technology significantly enhances grain processing by achieving maximum yields of over 95%, reducing waste while ensuring uniform puffing across all grains. The system operates with remarkable energy efficiency, consuming 50% less energy compared to similar systems – it utilizes 60 kilowatt-hours (kWh) per 100 kilograms (kg) of product as opposed to 120 kWh. Additionally, it ensures a stable and industrial-grade puffing process compliant with the strictest food safety regulations.
In April 2025, Bühler will open an Application & Training Center at its headquarters in Uzwil, Switzerland, focused on puffing technology. At the center, customers will be able to test new product recipes with ingredients such as pulses and develop new processes applying this technology.
“By incorporating advanced puffing technology, we are confirming our commitment to innovation, addressing both current market demands and anticipating future consumer trends," said Christoph Vogel. "Now, we are ready to discuss with our customers the exceptional opportunities for integrating this solution into their plants.”
The collaboration with CEREX on puffing technology strengthens Bühler’s ability to provide innovative solutions in the cereal and snacks market while not impacting CEREX’s other services, machine portfolio, or operations. Puffing technology for non-food and non-feed applications remains in the exclusive purview of CEREX.
