The cold filling processes is a popular choice for the food, beverage and pharmaceuticals industries because it is not subject to the limitations and restrictions that come with the hot filling process.
In this two-part post, we’ll help you get to know cold filling just a little bit better. In part one of our post we’ll focus on how cold filling technology works while part two will look at some of the benefits of this popular filling process and what it is best used for.
How does the cold filling process work?
The process of cold filling varies significantly from hot filling and includes several steps. During the cold fill process the container is pressurised by cooling the product then the cold product is added to the cold container.
Unlike the hot filling process the bottles are not sterilised in the same way and require an additional step in the process to ensure that that they are safe and to keep the product in a usable condition. When it comes to sterilisation fillers have two options namely, wet and dry sterilisation.
Wet aseptic sterilisation involves sterilising containers using steam and peracetic acid (C2H4O3) which results reduces the number of germs present in the container. With dry sterilisation hydrogen peroxide (H2O2). The type of sterilisation used is determined by the product and container.
Don’t miss part two of our post where we look at some of the benefits of this popular filling process and what it is best used for.
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