We do not indicate an exact expiry date because these sera are very stable over time thanks to their freeze-dried form.
You may consider that they can be kept for up to 10 years from the production date (indicated in the upper right-hand corner of the product sheet). Store freeze-dried at +2° – 26°C.
For information regarding storage in the reconstituted (liquid) form, please refer to the product sheet.
In general, liquid sera should be stored as follows:
- Store at -20°C in aliquots after reconstitution.
- Never freeze/thaw more than 3 times.
- If reconstituted, store at +4°C for up to 2 days.
Once reconstituted, the sera should be aliquoted and stored in air-tight vials (preferably with a twist cap, such as a cryotube). Otherwise, auto-lyophilisation may occur within 6-12 months at -20°C.