Reply by gerrym526

Red oak is porous, white oak is not. Try this experiment-1) rub dish soap on the end grain of a piece of red oak, 2) blow through the other end of the piece-bubbles will form on the soapy end because the red oak fibers are arrange like a bunch of long straws bundled together.
White oak fibers are much more tangled/dense, so the soap bubble test won’t work-ie. the grain is tighter.
Overall, science studies have shown that most hardwoods (including oak) are more anti-bacterial than any manmade material (ie. hard plastic cutting boards)

-- Gerry