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Aseptic drinkable yogurt gets ‘dry sterilization’

Yili Group of China has invested in two new aseptic PET lines for drinkable yogurt in 230-g bottles.

Yili Group of China employs Combi Predis dry sterilization for its shelf stable aseptic drinkable yogurt.
Yili Group of China employs Combi Predis dry sterilization for its shelf stable aseptic drinkable yogurt.

Both lines rely on the dry preform sterilization technology from Sidel called Combi PredisTM. Unlike conventional aseptic solutions that use paracetic acid to sterilize bottles followed by a rinse of hot water, Predis accomplishes sterilization by injecting hydrogen peroxide vapor into the preform right before the preform heating stage. This reduces waste and resources. With no need for water, and almost no use of chemicals for preform decontamination, it also addresses one of the most important challenges manufacturers face today: minimimizing their environmental footprint. It also provides high levels of efficiency and bottle lightweighting potential because these bottles aren’t subjected to the thermal extremes inherent in conventional sterilization by paracetic acid.

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