As the weather gets colder in Canada, we understand some customers may be concerned about the sub-zero temperatures during the shipment of Rapid Test Kits.
Transport temperatures dipping below 0°C for short durations of time will not have an adverse effect on the test, or the buffer liquid. The Canadian Shield has been assured by BTNX Inc. (the manufacturer), that should the buffer liquid in your test kit freeze during transportation, it won't cause any issues, so long as the test components are brought up to room temperature again.
Please visit BTNX | FAQ - Rapid Antigen Tests for more details.
Recommendation: It’s extremely important to bring the tests to room temperature before adding the sample into the test, as low ambient temperatures when conducting the test may cause false results. We recommend letting the test kit contents sit out for 4-6 hours before use.