Sterile shelf life depends on packaging type, storage conditions, and manufacturer recommendations. Switzerland has no codified retention period in MePV; the GPA 2022 and KIGAP recommend alignment with SN EN 868 (packaging) and SN EN ISO 11607 (packaging validation). Every sterilized package must be dated, batch-numbered, and marked with a use-by date calculated according to packaging type. For prion-relevant procedures, the 134°C / 18-minute cycle per CJKV (SR 818.101.21) applies.
The use-by date (Verfallsdatum / date limite d'utilisation) is the date beyond which a sterilized medical device can no longer be considered sterile, even if its packaging appears intact. It must be marked on each pouch at the time of packaging, before autoclaving. For Swiss practices, the GPA 2022, KIGAP 2010 (status 2017), and the SSO Quality Guidelines on Practice Hygiene (2018) require date marking on packaging, with sterile goods stored dry and dust-protected.
The use-by date does not depend solely on the sterilization process: it depends primarily on packaging integrity and storage conditions. A perfectly executed autoclave cycle is meaningless if the pouch is later compromised by handling, humidity, or physical damage. Switzerland has no codified retention period in MePV; the GPA 2022 and KIGAP recommend alignment with SN EN 868 (packaging) and SN EN ISO 11607 (packaging validation) — the SN EN 868 family defines the packaging standards that determine shelf life.
Single-layer peel pouch (paper/plastic): 2 months under optimal storage conditions. Double-wrapped peel pouch: up to 6 months. Rigid sterilization container with filter: up to 6 months (check manufacturer recommendations). These durations follow the SN EN 868 packaging standards and are accepted as best practice under the GPA 2022 and KIGAP.
These durations are indicative and assume optimal storage. Any pouch whose packaging is punctured, wet, stained, or opened must be considered non-sterile, regardless of the marked use-by date. The event-related shelf life concept applies: sterility is maintained as long as packaging integrity is preserved, up to the maximum indicated duration. For prion-relevant procedures, the 134°C / 18-minute cycle per CJKV / OMCJ (SR 818.101.21) applies.
Sterilized pouches must be stored in a clean, dry, enclosed space, away from direct light and dust. Temperature should be stable (between 18 degrees C and 25 degrees C) with relative humidity below 60%. Pouches must not be stacked under excessive weight, compressed in an overfull drawer, or handled with unsanitized hands.
First-in, first-out (FIFO) stock rotation ensures the oldest pouches are used first, minimizing waste from expired sterility. SecuSteri calculates the use-by date for each pouch automatically based on the sterilization date and the configured packaging type, generating labels with the date clearly visible.
Each pouch must display: the sterilization date, the use-by date, the autoclave batch number for traceability, and identification of the contents (instrument or batch). This information links the pouch to the autoclave cycle that processed it, completing the traceability chain expected under MePV Art. 72 and the GPA 2022. Inspectors from the Kantonsarztamt / Service du médecin cantonal check that labels are present, legible, and consistent with the sterilization register during reprocessing inspections.
Traceability software can automate this labeling process: SecuSteri generates labels with QR codes that link each pouch directly to its autoclave cycle report, eliminating handwriting errors and ensuring every required field per the GPA 2022 and the SSO Quality Guidelines on Practice Hygiene (2018) is present. For tattoo, piercing, and permanent makeup studios, ink batch numbers are linked to client treatment records under the EDI Ordinance on objects in human contact (SR 817.023.41) and the REACH Annex XVII Entry 75 compliance regime (binding in Switzerland since 1 February 2025).
A pouch past its use-by date must be reprocessed: opened, cleaned, repackaged, and put through a new sterilization cycle. It must under no circumstances be used on a patient. The presence of expired pouches in active storage is one of the most frequently cited findings during cantonal inspections by the Kantonsarztamt / Service du médecin cantonal. For dental practices, SSO disciplinary procedures may follow, and the Cantonal Health Directorate may suspend or revoke the cantonal practice license. For tattoo, piercing, and permanent makeup studios, warnings, fines, and — in Genève and Neuchâtel only — suspension of the cantonal Bewilligungspflicht apply.
For detailed information on autoclave biological controls, see the dedicated guide.
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