A third challenge of educating consumers about food microbiology and safety is the invisibility and variability of the problem. Consumers may not see or smell the microorganisms that contaminate their food, or they may not experience the symptoms of foodborne illnesses immediately or at all. Moreover, different foods may have different microbiological and safety characteristics, depending on their composition, processing, packaging, storage, and preparation. To overcome this challenge, use visual and interactive tools that can illustrate and demonstrate the effects and consequences of food microbiology and safety. For example, you can use images, videos, charts, graphs, or animations to show the size, shape, structure, and diversity of microorganisms, or the changes in color, texture, odor, or taste of spoiled or contaminated food. You can also use quizzes, games, simulations, or experiments to test the knowledge and skills of consumers, or to show them the results of different food microbiology and safety scenarios.