LONDON, ENGLAND — Schalk Mühle added an all new processing/cleaning line for seeds and pulses, which features a Bühler SORTEX A optical sorter, at its facility in Styria, Austria.

“We needed to be able to deliver the highest-quality end product that could be sorted entirely in-house; previously we were outsourcing,” said Rainer Schalk, chief executive officer of Schalk Mühle. “The SORTEX A was the perfect fit. It was our first optical sorter and it’s ensured 99.9% product quality, which would otherwise be extremely difficult to achieve. The SORTEX A works very well with the other machines in the line, too. It provides a seal of quality assurance for our partners and customers that we wouldn’t get with any other provider.”

Schalk Mühle is a provider of organic seed, kernel, grain and pulse products. It is renowned for its pumpkin seed oil. 

 “Schalk Mühle is a sixth-generation family business,” Rainer Schalk said. “My family operated a flour mill here for more 150 years, which has since become a popular tourist museum. In 1950, we started with our first oil press.

“Today, we sell pumpkin seeds, linseeds, sunflower seeds, lentils, beans and chickpeas, organic plant-based oils for cooking and seasoning food, snacks, pestos, creams and protein products for our fitness-orientated customers.”

Having premises in Ilz on the Feistritz River is extremely fortuitous, as it enables Schalk Mühle to minimize its costs and environmental impact by generating its own hydroelectric power. This combined with solar power generated on site enables Schalk Mühle to produce 200% of the electricity it uses each year, some of which is given back to the local community.

“Growing nuts, seeds and kernels naturally leaves a very small carbon footprint,” Rainer Schalk said. “And thanks to our environmentally friendly hydropower and solar power, we produce a wide range of CO2-neutral organic foods, which helps to set us apart from our competitors.”

As Schalk explains, removing foreign materials (FM) such as tiny pieces of stone, plastic and wood can be a big challenge when cleaning pumpkin seeds and other crops. 

“The SORTEX A is key to our cleaning process,” he said. “As well as FM, it successfully removes white and damaged pumpkin seeds. We also use it for flax seeds, chickpeas, beans and hemp seeds — we have the flexibility we need. Our SORTEX A stands at the end of our cleaning line to provide quality assurance. There are older Bühler machines in our museum, so before buying the SORTEX A we knew how Bühler’s solutions performed. The support and aftercare we’ve always received has been excellent with annual visits from Bühler’s local Salzburg-based service engineers who work with us to ensure optimum performance of our SORTEX A.”

Schalk Mühle has been a part of Austria’s organic movement for more than 20 years. More than 25% of Austria’s total farming land is organic and it has one of the world’s highest densities of organic farmers. However, Styria’s arable land is mostly non-organic. 

“We wanted to set up an organic business for local communities and then sell their produce worldwide,” Rainer Schalk said. “Organic farming is better for the environment, people and the future. We have our own farm where we teach best practices. We share knowledge that enables Austrian farmers to grow a diverse range of crops. Soybeans and wheat are the most common organic crops that Austrian farmers grow, but they’re less aware of the opportunities offered by the more specialized crops such as flax, hemp, sunflower and pumpkin seeds. We help them to cultivate these and boost their incomes by selling them.”