CoolCell®, an alcohol free cell freezing container, is a novel tool for the improvement of cell cryopreservation and recovery. It provides the most precise controlled rate of cooling of -1°C per minute for freezing a large variety of cells (e.g. PBMCs, primary cells, cell lines, stem cells, tissue cells). The radially symmetric design and solid thermal core ensures that each of the 12 samples cools at the same rate, eliminating variations in freezing profiles between samples and yielding better cell viability.