Vaccine Porters
The Vaccine Porters/Mini Porter are validated for multiple openings1
The Vaccine Porter and Mini Porter are validated, using Medicools, to maintain internal temperatures between +2°C and +8°C for 8 hours or more.1
The validations incorporate multiple openings of both the Vaccine Porter and Mini Porter. This more closely matches the way these systems are used in the field.1
Graph showing results of multiple openings of Vaccine Porter

From the graph above it can be seen that the product temperatures 1-10 remained within the required thresholds (+2°C to +8°C) until their required removal time. This shows that the Vaccine Porter can be opened multiple times without these required thresholds being exceeded.
1. Data on File, CliniMed 2002