As electronic noses are carried into the future, the applications for these products will grow. Future electronic noses may be applied to environmental problems such as analyzing hazardous waste, fuel mixtures, ground water, air quality, or factory emissions. The food industry is already using these mechanical sniffers, but the uses could grow to include fish inspection, fermentation processes, container examinations, or verifying if orange juice is natural. The electronic nose could even be used in telemedicine so a doctor would be able to smell the breath of a patient a thousand miles away by recreating what an electronic nose smells. Someday household refrigerators may alert the owners of the potato salad that has been left in the fridge since last Christmas!