The use-by date determines how long a sterilized pouch remains considered sterile. ÖZÄK-Hygieneverordnung 2025 (§ 21) and ÖNORM EN 868 define the requirements for packaging, labeling, and storage. For oral surgery and endodontic instruments (Anlage 2 Categories C and D), the maximum sterile-storage period is 6 months. Every batch must be marked with sterilization date, batch number, and use-by date.
The use-by date (Verfallsdatum) 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 Austrian dental practices, § 21 ÖZÄK-Hygieneverordnung 2025 (in force since 1 May 2025) requires this 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. The ÖNORM 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 general guidelines accepted across Austrian professional bodies and align with the ÖNORM EN 868 packaging standards.
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 dental Anlage 2 Categories C (endodontic / penetrating mucosa) and D (oral surgery), Anlage 2 ÖZÄK-HygV 2025 caps sterile-storage at 6 months regardless of packaging type.
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 (Verfallsdatum), the autoclave batch number (Chargennummer) 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. Inspectors from the Bezirksverwaltungsbehörde check that labels are present, legible, and consistent with the sterilization register during Ordinationsüberprüfungen.
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 Anlage 1 ÖZÄK-HygV 2025 is present.
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 Bezirksverwaltungsbehörde inspections. For dental practices, ZÄKG § 58 Abs. 1 disciplinary penalties apply: monetary penalty up to €40,000 + removal from the dental register. For tattoo, piercing, and permanent makeup studios, GewO 1994 § 366 administrative fines up to €3,600 + revocation of the Gewerbeberechtigung apply.
For detailed information on autoclave biological controls, see the dedicated guide.
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