1. Sprinkle powder very lightly over a head of lettuce, tomato or another fruit or vegetable to be processed by trainees so that powder is not visible in ordinary light. Food used is to be discarded after demonstration.
2. Have trainee’s process food using their normal procedure and kitchen utensils.
3. Use UV lamp to show how the “glowing germs” are spread to hands, cutting boards, knives and to other foods.