Complex sentence: Phytohaemagglutinin can be deactivated by cooking beans at for ten minutes, which is required to degrade the toxin and is much shorter than the hours required to fully cook the beans themselves.
Split into simpler sentences: Phytohaemagglutinin can be deactivated by cooking beans at for ten minutes. The ten minutes at is required to degrade the toxin, and is much shorter than the hours required to fully cook the beans themselves.