B├╝hler reduces insects in flour with new technology

by World Grain Staff
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GRIESKIRCHEN, AUSTRIA — Three Bühler matador impact machines are being used at the Haberfellner Mill in Grieskirchen, Austria. To assure the best possible flour and semolina quality the modern matador machine series deactivates potential insects and their eggs in flour and semolina at a success rate of up to 100%, Bühler said.

Insects and their eggs should neither be in flour and semolina nor in the resulting food products. Milling operations have various options for keeping their plants and products free of insects and insect eggs. To destroy insects and their eggs in the product, using an impact machine is imperative.

Three Matador MJZH by Bühler have been in use at Haberfellner Mill since November 2014. During the development of the new line of impact machines special attention was given to design of the sealing rings ensuring an even longer service life, Bühler said. 

“Our new impact machines have been running continuously, 22 to 24 hours per day from Monday to Saturday, without any problems or breakdowns since they were commissioned," said Joachim Kaar, plant manager for Haberfellner and responsible for production. “We are extremely satisfied with Matador. In addition to its high reliability, I particularly like the improved efficiency and extremely high degree of deactivation.“Since we’ve started using the Bühler machines, the risk of contamination by insect eggs has been virtually eliminated.” 

Haberfellner’s satisfaction with Bühler has a long tradition. Since the first large new mill was constructed in 1966, the Upper Austrian family business relies almost exclusively on Bühler as a technology partner, the company said.

Insect eggs are characterized by enormously high resistance. They can withstand the entire multi-staged milling process without any damage. The last option for permanently killing the insect eggs is either before storing the flour or semolina or before the bagging or bulk loading. Impact machines can be used at this step in the process in the same way as for grain to destroy the insects and their eggs.