HIC's ideal egg with a color-changing indicator helps cook ideal soft, medium and hard-boiled eggs every time. No more underdone or overdone yolks. Unlike traditional hourglass or mechanical timers, ideal egg uses heat rather than time to sense when eggs are cooked. The unique color-changing indicator heats up in the water at the same time as the eggs. The color then transitions from red to white visibly showing the precise moment when eggs are cooked to idealion. There's no mechanical gadget to set or complex app to learn and no more guessing how long to boil eggs, easy-to-use. Simply add the timer to the water along with the eggs and cook until the color change reaches the desired level of doneness. Easily cook the ideal soft-boiled egg or dippy egg, in just 10 min for topping avocado toast or dunking buttered toast strips, known as toast soldiers. Make ideal medium to hard-boiled eggs (up to 18 min) for deviled eggs, egg salad, pickled eggs or enhancements to potato salad, lasagna, soup and ramen. Made from FDA approved, BPA-free polyresin with a heat-sensitive color-changing indicator, HIC's Ideal Egg is sturdy, durable and reusable. It's compact for easy storage and heat safe to 212 deg F. Allow the timer to cool completely before handling. Hand wash in warm, soapy water.