Yes you can.
Kai Carriers are microwave safe. The materials used in the manufacture of Kai Carriers have USFDA food approval. This is valid to a maximum of 90 degrees Celsius for direct food contact.
If you do choose to microwave the pouches, ensure that the zip lock is open, heat on 50-70% power and always stir and test the pouch contents prior to consuming, as microwaves heat food unevenly. Note that microwaving the pouches will reduce their lifespan.
The manufacturer’s recommended method for heating pouches is to sit them in a container of warm water and allow them to heat through, especially for baby food.