Hydrogen peroxide concentration control for aseptic filling using DMA 35
Accurate hydrogen peroxide concentration control is essential for aseptic filling to ensure sterility and safety while preventing overdosing. The portable density meter DMA 35 enables quick and reliable on-site checks, providing a fast solution for concentration control in production environments.
Hydrogen peroxide is a widely used sterilizing agent in aseptic filling lines, particularly in the food industry, where products such as milk or juice are packed in e.g., Tetra Pak cartons. In this process, both the packaging material and the filling unit must be sterile to guarantee product safety and extended shelf life. Effective sterilization depends on maintaining hydrogen peroxide concentration within a defined range: levels that are too low risk insufficient sterilization, while excessively high concentrations may damage the packaging, impair the filling equipment, or leave chemical residues in the product.
Hydrogen peroxide is typically supplied at higher concentrations and diluted before use to e.g., 35 % w/w. Since it degrades over time, both stock and working solutions must be monitored to ensure consistent sterilizing performance. Regular checks are essential to guarantee that the concentration applied during carton and unit sterilization is both effective and safe. The DMA 35 density meter provides a portable, fast, and reliable solution for this challenge. With its integrated correlation table, which directly links density to hydrogen peroxide concentration, the DMA 35 enables immediate on-site verification without the need for laboratory analysis. This ensures accurate control during dilution, storage, and application, enabling manufacturers to meet strict food safety requirements while optimizing chemical usage. The objective of this report is to demonstrate the suitability of the DMA 35 as a practical tool for monitoring hydrogen peroxide concentration in aseptic filling processes such as Tetra Pak production.
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