SED-20FSD-J — Liquid Nitrogen Quick-Freeze Cabinet

Liquid nitrogen at atmospheric pressure absorbs 199.29 kJ/kg as it evaporates and a further 1.05 kJ/kg per °C as it warms; rising from -196°C to -20°C absorbs 185 kJ/kg. Using LN2 dispersion technology, liquid nitrogen is dispersed as gas directly onto the product, producing a >200°C temperature differential that drives intense heat exchange. The food passes through the maximum ice-crystal formation zone (-1 to -5°C) in seconds, so ice crystals stay tiny and form simultaneously inside and outside the cells — preserving cell membranes and tissue. Programmable controller handles heat-up, hold and cool-down phases.