. >> think about what a loofa is doing. it collects dead skin cells which is breakfast for bacteria. i know, gross. >> you're not here to make us feel good about the new year. >> put them in the dishwasher on hot or throw them in the wash once a week on hot to kill the nasties. >> still get rid of them after about three months. >> experts said use an exfoliating scrub with your hand. forget the loofa all together. >> but i like that. and they are not expensive. >> cheap, three months, get rid of them. >> these babies stick around too much. the dirtiest thing in your home is probably that, unless you're cody's apartment. >> 30 days. that's all you get. you can run them in the dishwasher. with when they are damp, put them in the microwave 30 seconds to kill the germs every week. >> microwave? >> wet. a little damp or it will explode. 30 seconds in the microwave once a week. >> are these the disposable kind? >> any type of plasticware. if it starts to discolor, breaks down, toss it. don't put it in the microwave. don't put it