Insect farming is growing rapidly as a sustainable protein source. The welfare of farmed insects - produced in numbers that dwarf any other farmed species - presents profound ethical challenges under uncertainty.
Insect farming presents a unique welfare challenge: the scale is enormous, the sentience probability uncertain, and the welfare implications of different practices depend entirely on unresolved questions about insect experience. If insects have even a modest capacity for suffering, the scale of their farming - trillions of individuals - means that even minor improvements in welfare standards could matter enormously in aggregate. The precautionary principle suggests taking insect welfare seriously under uncertainty rather than dismissing it because insects are small and numerous. Killing methods that minimize potential suffering make sense as low-cost insurance against the possibility of morally relevant insect experience. The emerging insect farming industry is at a stage where welfare standards can be built in from the beginning rather than retrofitted to established practice.