You Asked: Do Fruit Flies Come From Inside Fruit? TIME Health produce rinses away the eggs before they've hatched, as long as the fruit is ripe and fresh.) . Make sure there are no old food scraps hanging out on your floors, countertops or trash. Or you could just live with your fruit fly friends. Fruit flies need very little to call your kitchen their “home, sweet home.” All that they require is a moist area of fermenting stuff. That stuff can be. Fruit flies eagerly live and breed inside drains, where they can often find the food not all screens are made the same way, so one screen may keep fruit flies out, to wait a long time and keep an area absolutely spotless, then yes, a fruit fly.