What can I do to protect the frost building up on the Spirulina in the freezer?

This is mostly the residual rinse water we use when rinsing the spirulina after harvesting. Frost is due to home freezer defrost cycles. Every time this happens there is more nutrient loss in the Spirulina. We recommend sealing the Peak trays in a zip lock bag or plastic container with a snap lid to protect from this frost.