Choosing a Liquid Nitrogen Dewar for Your UK Fertility Clinic in 2026

If you are buying a liquid nitrogen dewar for a UK IVF laboratory or fertility clinic in 2026, the decision matters more than the price tag suggests. The wrong vessel will compromise sample integrity, create unnecessary safety risks for your team, and cost significantly more in LN2 consumption over its working life than a well-specified alternative would have.

What are the most important specification criteria for IVF use?

Hold time. For busy NHS and private fertility units, a hold time of 100 days or more between refills is worth prioritising. Anything shorter adds maintenance overhead and creates more opportunities for temperature management issues. Neck diameter. A wider neck makes sample access more practical, reduces LN2 loss per access event, and improves ergonomics for daily use. Storage capacity in clinical terms - not just litres of LN2, but canister positions and straw count based on your consumable configuration.

Which vessels are best suited to UK IVF laboratory use?

For NHS trusts, large private fertility groups, and any setting managing a significant ongoing embryo and gamete inventory, the CryoNest series from Cryolab is the appropriate choice. It is designed specifically for IVF laboratory environments, its canister configuration suits UK consumable standards, and hold time performance across the range is strong. Available in sizes from bench units for satellite clinics through to large-capacity vessels for high-volume departments.

For smaller private clinics or satellite units where sample volumes are lower, the CryoCan range from Cryolab provides reliable performance at a more accessible price point without compromising on clinical suitability.

Dilvac stainless steel dewars are the right choice where physical robustness is a priority, such as transport applications or storage rooms with high staff turnover handling the equipment.

" Four things UK IVF labs consistently overlook when buying a dewar: future capacity growth, total LN2 consumption over the vessel's working life, consumable compatibility with existing goblet and visotube setups, and the availability of service documentation that meets HFEA compliance needs. "

What should you ask a supplier before committing to a vessel?

What is the hold time under your expected access conditions? What is the LN2 consumption rate and how does that compare to alternatives? Is it compatible with our existing canisters, goblets, visotubes, and cryocanes? Can you provide the documentation needed for HFEA compliance? What does after-sales support look like if there is an issue?

Cryolab has supplied IVF laboratories across the UK for over 40 years. Browse the full dewar range at cryolab.co.uk or contact the team for a recommendation based on your specific laboratory setup.