Size for where your patient volume will be at three years of operation, not at opening day. A vessel that is modestly larger than current demand costs slightly more upfront and uses marginally more LN2 to maintain. A vessel that is too small at eighteen months requires emergency procurement, often at short notice, with samples transferred between vessels: an operation carrying temperature risk and HFEA documentation requirements.
For a new clinic expecting 200 to 400 IVF cycles per year at maturity, a 47L vessel with ten canisters provides adequate initial capacity with room to grow. Clinics planning elective egg freezing alongside IVF, or anticipating faster growth, should consider the CryoNest XL from the outset. The HFEA Fertility Treatment 2024 Trends and Figures report consistently shows year-on-year growth in frozen cycle volumes across UK clinics, which means undersizing is a structural risk that compounds over time.
