Carbon steel, a material used to make knives, pans, and more, is becoming more and more popular in home kitchens. However, some people find the change of its color from shiny silver, to brown, to black, alarming. Hannah explains why sometimes, that can be a good thing.Buy Our Winning Carbon Steel Knife: https://cooks.io/2OOAO1CBuy Our Winning Carbon Steel Skillet: https://cooks.io/2SjcdjTCheck Out Our Full Review of Carbon Steel Knives: https://cooks.io/2qe5XNwCheck Out Our Full Review of Carbon Steel Skillets: https://cooks.io/2OSQMb6Follow Hannah on Instagram: https://www.instagram.com/hannah_crowley8/Watch more Is it Bad? https://www.youtube.com/playlist?list=PLnbzopdwFrnYk4goXGnZqSCv6_EeR-8VtCheck out our What's Eating Dan? series: https://www.youtube.com/playlist?list=PLnbzopdwFrnZc-UgGYETAQair7VzS7_Z8ABOUT US: Located in Boston’s Seaport District in the historic Innovation and Design Building, America's Test Kitchen features 15,000 square feet of kitchen space including multiple photography and video studios. It is the home of Cook’s Illustrated magazine and Cook’s Country magazine and is the workday destination for more than 60 test cooks, editors, and cookware specialists. Our mission is to test recipes over and over again until we understand how and why they work and until we arrive at the best version.If you like us, follow us:http://cooksillustrated.comhttp://facebook.com/cooksillustratedhttp://twitter.com/testkitchenhttp://instagram.com/cooksillustratedhttp://pinterest.com/testkitchen