How often should the temperatures on the fridge and freezer be checked?

Checking the temperatures of the fridge and freezer twice a day is vital for ensuring that vaccines are stored within the recommended ranges to maintain their potency. Vaccines are sensitive to temperature fluctuations, and even short periods of improper storage can compromise their effectiveness. By monitoring the temperatures two times each day, technicians can promptly identify any deviations from the desired range and take corrective actions before any damage occurs. This routine helps maintain a stable environment for vaccine storage, thus safeguarding patient health and ensuring that immunization efforts are effective.

Other options, such as once a day or once a week, do not provide enough frequency to catch temperature changes that may occur at different times throughout the day. Checking only at the start of each shift may also leave significant gaps in monitoring, potentially allowing harmful temperature excursions to go unnoticed. Therefore, checking twice a day strikes a balance between thoroughness and practicality, ensuring a higher level of confidence in vaccine storage conditions.