WEST SUSSEX, U.K. - eTradeWire -- Cryolab, a specialist supplier of cryogenic equipment, consumables and servicing to laboratories worldwide, has published a practical guide to embryo cryopreservation for embryologists and IVF laboratory managers.

The guide treats embryo cryopreservation as a chain of physical objects and short handling steps, from the vitrification carrier through the visotube, goblet and canister to the storage vessel. It sets out the published figures a laboratory can check itself against.

Topics covered include:

- Storage temperatures: -196 °C in liquid nitrogen and typically -150 °C or lower in vapour, with ASRM guidance noting that vitrified embryos can be damaged above about -120 °C
- Open and closed vitrification carriers and how the choice affects storage and transport

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- The five-level storage address and the use of two patient identifiers
- Vessel options from 30 to 175 litres
- Monitoring points from the ASRM cryostorage opinion, including level probes, regular level checks and quarterly testing of the monitoring system
- Blastocyst cryosurvival targets from the Vienna consensus: 90% competency and 99% benchmark
- Long-term storage in the UK, where embryos can be stored for up to 55 years with consent renewed every 10 years
- Transport in dry shippers and safe handling

The guide is free to read on the Cryolab website. Laboratories should always follow their own validated procedures and the requirements of their regulator.

Read the guide: https://cryolab.co.uk/embryo-cryopreservation-storage-handling/

About Cryolab

Cryolab was established in 2000 and is based in Chichester, England. The company supplies cryogenic equipment, consumables, accessories and servicing to IVF clinics, hospitals, biobanks and research laboratories worldwide, and holds ISO 9001:2015 certification.