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Chemical-Free Cap Sterilization Technology

New BluStream module delivers a low-energy e-beam treatment that can be administered at room temperature.

BluStream® is a low-energy e-beam sterilization treatment that can be administered at room temperature.
BluStream® is a low-energy e-beam sterilization treatment that can be administered at room temperature.

At PACK EXPO Las Vegas, Serac introduced its new BluStream® sterilization technology, a low-energy e-beam treatment that can be administered at room temperature. Noted the company, the technology is capable of ensuring a 6-log bacteriological reduction in only 0.3 to 0.5 sec per side, allowing it to be used in aseptic packaging.

BluStream technology can be applied to a range of cap materials—high-density polyethylene, low-density polyethylene, PET, or polypropylene among them—as well as aluminum and virtually any bottle size. BluStream is used for high-acid products such as fruit juices, as well as low-acid products such as teas, UHT milks, milk-based drinks, and milk substitutes. The module is intended for use on bottling lines of non-refrigerated and ESL 90-day beverages.

E-beam is a physical dry treatment. To sterilize the surface, e-beam dispenses a beam of electrons over the surface of the product. The electrons quickly destroy the microorganisms by breaking their DNA chains. Serac noted that its BluStream module stands out in the aseptic packaging market, as it uses low-energy electron beams that do not penetrate the treated material. In addition, it will not affect the internal structure of the cap.

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