Processing & Preservation
Aseptic packaging
Filling a commercially sterile product into a sterilised container in a sterile environment, sealing without further heat.
Real-life application
What lets Tetra Pak milk and juice sit unrefrigerated on a store shelf for months, then spoil within days once opened.
Related terms
UHT
Processing & PreservationHeating to roughly 135–150 °C for 2–5 seconds followed by aseptic packaging, giving a shelf-stable product without refrigeration.
Retort
Food EngineeringA pressure vessel used to sterilise food after sealing in its container, allowing temperatures above 100 °C.
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