It's time for another round of myth busters - the food edition. To put these culinary urban legends to the test, we turned to food connoisseur Ted Allen - host of a new TV show called "Food Detectives" on the Food Network.* Food myth #1: Double dipping transmits germs. That's TRUE. In an experiment that involved food technicians double-dipping, and even triple-dipping a bag of potato chips, scientists found the results disturbingly dirty. All it takes is one single bite to transfer more than 10-thousand bacteria from the mouth back into a bowl of dip.* Food myth #2: Chewing gum stays in your stomach for 7 years if you swallow it. That's FALSE, according to the Food Detectives. Their experts designed 2 see-through prop stomachs, which were loaded with enough stomach acid to represent the digestion of a real stomach. In one prop they dropped some food, and in the other they dropped a giant gumball. While the gum didn't digest, it still passed through the digestive tract like any other food - all within 24 hours.* Next food myth: Baking soda absorbs nasty refrigerator odors. That one's TRUE, according to a simple side-by-side "smell test". Researchers loaded two refrigerators with rotting, rancid food. The one that was stocked with a pound of baking soda actually smelled less foul than the fridge with no baking soda. However, experts say an even better fix for bad odors is to use activated charcoal - which you can buy in any drug store in the first aid section. Charcoal is more porous than baking soda, so it'll absorb more of the molecules that cause odor.* Here's one last food myth: Eggs and grapes are dangerous in a microwave. Again, that's TRUE. The Food Detectives found that eggs will explode in a microwave if you don't puncture them first and grapes can cause sparks if they're heated under certain conditions. In fact, most liquid-based foods can explode in a microwave if they become superheated - including water! So it's best to heat them for only a short time.