Complex sentence: The softer surface of plastic boards is scored by knives, and the resulting grooves and cuts in the surface harbour bacteria even after belike wood, plastic boards doith harsher cle other disinfectants without damagetention of the chemicals to later contaminate food.
Split into simpler sentences: The softer surface of plastic boards is scored by knives, and the resulting grooves and cuts in the surface harbour bacteria even after being well washed. However, unlike wood, plastic boards do allow rinsing with harsher cleaning chemicals such as bleach and other disinfectants without damage to the board or retention of the chemicals to later contaminate food.