jennyema
Chef Extraordinaire
In fact, research has shown that plastic is MORE bacteria friendly than wood and knives score the plastic which lets grot and bacteria get trapped in them and unlike cuts in wood, bacteria can thrive and multiply in the cuts in plastic.
UC-Davis Food Safety Laboratory: Cutting Board Research
and
RELEASE: Study: Wood cutting boards, not plastic, are safer for food prep
Glass may be the best as far as cleaning is concerned but it will rapidly ruin your knives.
I spray mine with a beach solution before they go in the dishwasher.
Plastic rules!