Letter: Never leave food on the ground

I once took a food safety class. In that class the first and most important thing they taught you was to wash your hands.The second most important thing they taught was nothing goes on the floor. Ever. When a box, bag or carton hits the floor, anything on the ground is now on the bottom of that box, where it then catches a free ride onto your dinner table and kitchen countertops. If you won’t put your shoes on the table, why would you put food on the ground?When I receive a contactless del