Krones AG received a letter of non-objection from the FDA for a rotary dry-aseptic PET-bottle filling system featuring H2O2 as the sterilizing agent. The U.S. Food and Drug Administration test includes verifying microbiological safety when filling low-acid aseptic products in the range from pH 4.6 to pH 7. Krones says it has a rotary aseptic filling system in the low output category for a Nestlé’s research center in the USA. A seal sterilization feature is also based on H2O2. Even the isolator, after it has been cleaned with caustic and rinsing water, and then dried, is sterilized in a dry process using evaporated H2O2 and not peracetic acid as had previously been the case. As a consequence, the downtime required for cleaning and sterilizing the system has been minimized, the company states.
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