Bees may be too tightly programmed to a narrow range of hive environments.
Plastic is not a material that is conducive to the long-term health of honeybees.
Since 1963, plastics have been used in conventional hives without any evidence of side effects for the honeybees.
The Flow frame structure has a gap between the comb cells on both sides. This makes it difficult for bees to regulate temperature and communicate via vibration, as they normally would.
The Flow frame structure does not change the temperature of the cells, and is not all that different from plastic foundations, which have been used in hives for many decades.
Queens will lay eggs in the Flow cells, and the brood will contaminate the honey.
Queens will not lay eggs in Flow cells. They know the cells are not the correct size and depth.