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Technical guide

Aseptic filling and hot filling

How hot filling and aseptic filling differ in equipment, packaging and storage.

Stainless tubing and fittings inside the lab aseptic filling cabinet
Internal tubing and fittings of the lab aseptic filling cabinetAI restyled from the source photograph

In hot filling, the product goes into the container at a controlled high temperature. The package and closure need to tolerate that heat and the cooling step that follows.

Aseptic filling combines a treated liquid, suitable packaging and a controlled filling area. Your drink’s recipe, acidity, sensitivity to heat and storage needs all help determine which method fits.